diff --git a/adapters/bootstrap/SeedRacingData.ts b/adapters/bootstrap/SeedRacingData.ts
index 9bf0bc6e8..7e54fa145 100644
--- a/adapters/bootstrap/SeedRacingData.ts
+++ b/adapters/bootstrap/SeedRacingData.ts
@@ -8,6 +8,14 @@ import type { ILeagueMembershipRepository } from '@core/racing/domain/repositori
 import type { IRaceRegistrationRepository } from '@core/racing/domain/repositories/IRaceRegistrationRepository';
 import type { ITeamRepository } from '@core/racing/domain/repositories/ITeamRepository';
 import type { ITeamMembershipRepository } from '@core/racing/domain/repositories/ITeamMembershipRepository';
+import type { ISponsorRepository } from '@core/racing/domain/repositories/ISponsorRepository';
+import type { ISeasonRepository } from '@core/racing/domain/repositories/ISeasonRepository';
+import type { ISeasonSponsorshipRepository } from '@core/racing/domain/repositories/ISeasonSponsorshipRepository';
+import type { ISponsorshipRequestRepository } from '@core/racing/domain/repositories/ISponsorshipRequestRepository';
+import type { ILeagueWalletRepository } from '@core/racing/domain/repositories/ILeagueWalletRepository';
+import type { ITransactionRepository } from '@core/racing/domain/repositories/ITransactionRepository';
+import type { IProtestRepository } from '@core/racing/domain/repositories/IProtestRepository';
+import type { IPenaltyRepository } from '@core/racing/domain/repositories/IPenaltyRepository';
 import type { IFeedRepository } from '@core/social/domain/repositories/IFeedRepository';
 import type { ISocialGraphRepository } from '@core/social/domain/repositories/ISocialGraphRepository';
 import { createRacingSeed } from './racing/RacingSeed';
@@ -15,6 +23,13 @@ import { createRacingSeed } from './racing/RacingSeed';
 export type RacingSeedDependencies = {
   driverRepository: IDriverRepository;
   leagueRepository: ILeagueRepository;
+  seasonRepository: ISeasonRepository;
+  seasonSponsorshipRepository: ISeasonSponsorshipRepository;
+  sponsorshipRequestRepository: ISponsorshipRequestRepository;
+  leagueWalletRepository: ILeagueWalletRepository;
+  transactionRepository: ITransactionRepository;
+  protestRepository: IProtestRepository;
+  penaltyRepository: IPenaltyRepository;
   raceRepository: IRaceRepository;
   resultRepository: IResultRepository;
   standingRepository: IStandingRepository;
@@ -22,6 +37,7 @@ export type RacingSeedDependencies = {
   raceRegistrationRepository: IRaceRegistrationRepository;
   teamRepository: ITeamRepository;
   teamMembershipRepository: ITeamMembershipRepository;
+  sponsorRepository: ISponsorRepository;
   feedRepository: IFeedRepository;
   socialGraphRepository: ISocialGraphRepository;
 };
@@ -41,6 +57,15 @@ export class SeedRacingData {
 
     const seed = createRacingSeed();
 
+    let sponsorshipRequestsSeededViaRepo = false;
+    const seedableSponsorshipRequests = this.seedDeps
+      .sponsorshipRequestRepository as unknown as { seed?: (input: unknown) => void };
+
+    if (typeof seedableSponsorshipRequests.seed === 'function') {
+      seedableSponsorshipRequests.seed(seed.sponsorshipRequests);
+      sponsorshipRequestsSeededViaRepo = true;
+    }
+
     for (const driver of seed.drivers) {
       try {
         await this.seedDeps.driverRepository.create(driver);
@@ -57,6 +82,65 @@ export class SeedRacingData {
       }
     }
 
+    for (const season of seed.seasons) {
+      try {
+        await this.seedDeps.seasonRepository.create(season);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
+
+    for (const sponsorship of seed.seasonSponsorships) {
+      try {
+        await this.seedDeps.seasonSponsorshipRepository.create(sponsorship);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
+    if (!sponsorshipRequestsSeededViaRepo) {
+      for (const request of seed.sponsorshipRequests) {
+        try {
+          await this.seedDeps.sponsorshipRequestRepository.create(request);
+        } catch {
+          // ignore duplicates
+        }
+      }
+    }
+
+    for (const wallet of seed.leagueWallets) {
+      try {
+        await this.seedDeps.leagueWalletRepository.create(wallet);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
+    for (const tx of seed.leagueWalletTransactions) {
+      try {
+        await this.seedDeps.transactionRepository.create(tx);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
+    for (const protest of seed.protests) {
+      try {
+        await this.seedDeps.protestRepository.create(protest);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
+    for (const penalty of seed.penalties) {
+      try {
+        await this.seedDeps.penaltyRepository.create(penalty);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
     for (const race of seed.races) {
       try {
         await this.seedDeps.raceRepository.create(race);
@@ -79,6 +163,14 @@ export class SeedRacingData {
       }
     }
 
+    for (const request of seed.leagueJoinRequests) {
+      try {
+        await this.seedDeps.leagueMembershipRepository.saveJoinRequest(request);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
     for (const team of seed.teams) {
       try {
         await this.seedDeps.teamRepository.create(team);
@@ -87,6 +179,14 @@ export class SeedRacingData {
       }
     }
 
+    for (const sponsor of seed.sponsors) {
+      try {
+        await this.seedDeps.sponsorRepository.create(sponsor);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
     for (const membership of seed.teamMemberships) {
       try {
         await this.seedDeps.teamMembershipRepository.saveMembership(membership);
@@ -95,6 +195,14 @@ export class SeedRacingData {
       }
     }
 
+    for (const request of seed.teamJoinRequests) {
+      try {
+        await this.seedDeps.teamMembershipRepository.saveJoinRequest(request);
+      } catch {
+        // ignore duplicates
+      }
+    }
+
     for (const registration of seed.raceRegistrations) {
       try {
         await this.seedDeps.raceRegistrationRepository.register(registration);
diff --git a/adapters/bootstrap/racing/RacingLeagueWalletFactory.ts b/adapters/bootstrap/racing/RacingLeagueWalletFactory.ts
new file mode 100644
index 000000000..b8f7f9c65
--- /dev/null
+++ b/adapters/bootstrap/racing/RacingLeagueWalletFactory.ts
@@ -0,0 +1,197 @@
+import { faker } from '@faker-js/faker';
+import type { League } from '@core/racing/domain/entities/League';
+import { LeagueWallet } from '@core/racing/domain/entities/league-wallet/LeagueWallet';
+import { LeagueWalletId } from '@core/racing/domain/entities/league-wallet/LeagueWalletId';
+import { Transaction } from '@core/racing/domain/entities/league-wallet/Transaction';
+import { TransactionId } from '@core/racing/domain/entities/league-wallet/TransactionId';
+import { Money } from '@core/racing/domain/value-objects/Money';
+
+type LeagueWalletSeed = {
+  wallets: LeagueWallet[];
+  transactions: Transaction[];
+};
+
+export class RacingLeagueWalletFactory {
+  constructor(private readonly baseDate: Date) {}
+
+  create(leagues: League[]): LeagueWalletSeed {
+    const wallets: LeagueWallet[] = [];
+    const transactions: Transaction[] = [];
+
+    for (const league of leagues) {
+      const leagueId = league.id.toString();
+      const walletId = `wallet-${leagueId}`;
+      const createdAt = faker.date.past({ years: 2, refDate: this.baseDate });
+
+      // Ensure coverage:
+      // - some leagues have no wallet (wallet use-case returns WALLET_NOT_FOUND)
+      // - some wallets have no transactions
+      // - some wallets have varied transaction types + statuses
+      const shouldHaveWallet = leagueId !== 'league-2' && leagueId !== 'league-7';
+
+      if (!shouldHaveWallet) {
+        continue;
+      }
+
+      const currency: 'USD' | 'EUR' | 'GBP' = leagueId === 'league-1' ? 'EUR' : 'USD';
+
+      const baselineBalance =
+        leagueId === 'league-5'
+          ? Money.create(2880, 'USD')
+          : Money.create(faker.number.int({ min: 0, max: 12_000 }), currency);
+
+      let wallet = LeagueWallet.create({
+        id: walletId,
+        leagueId,
+        balance: baselineBalance,
+        createdAt,
+      });
+
+      const transactionCount =
+        leagueId === 'league-3'
+          ? 0
+          : leagueId === 'league-5'
+            ? 14
+            : faker.number.int({ min: 2, max: 18 });
+
+      for (let i = 0; i < transactionCount; i++) {
+        const id = TransactionId.create(`tx-${leagueId}-${i + 1}`);
+        const type = this.pickTransactionType(i, leagueId);
+        const amount = this.pickAmount(type, currency, leagueId);
+
+        let status = this.pickStatus(type, i, leagueId);
+
+        const isDebit = type === 'withdrawal' || type === 'refund';
+        if (status === 'completed' && isDebit) {
+          const expectedNetAmount = amount.calculateNetAmount();
+          if (!wallet.canWithdraw(expectedNetAmount)) {
+            status = type === 'withdrawal' ? 'failed' : 'cancelled';
+          }
+        }
+
+        const tx = Transaction.create({
+          id,
+          walletId: LeagueWalletId.create(walletId),
+          type,
+          amount,
+          status,
+          completedAt: status === 'completed' ? faker.date.recent({ days: 180, refDate: this.baseDate }) : undefined,
+          createdAt: faker.date.recent({ days: 240, refDate: this.baseDate }),
+          description: this.describe(type, leagueId),
+          metadata: {
+            leagueId,
+            source: type === 'sponsorship_payment' ? 'sponsorship' : 'wallet',
+          },
+        });
+
+        transactions.push(tx);
+
+        // Update wallet balance for completed transactions only.
+        // Use netAmount because wallet stores net proceeds after platform fee.
+        if (tx.status === 'completed') {
+          if (tx.type === 'withdrawal' || tx.type === 'refund') {
+            wallet = wallet.withdrawFunds(tx.netAmount, tx.id.toString());
+          } else {
+            wallet = wallet.addFunds(tx.netAmount, tx.id.toString());
+          }
+        }
+      }
+
+      // Explicit edge-case: pending prize payout shows up in "pending payouts"
+      if (leagueId === 'league-5') {
+        const pendingPrize = Transaction.create({
+          id: TransactionId.create(`tx-${leagueId}-pending-prize`),
+          walletId: LeagueWalletId.create(walletId),
+          type: 'prize_payout',
+          amount: Money.create(600, currency),
+          status: 'pending',
+          createdAt: faker.date.recent({ days: 15, refDate: this.baseDate }),
+          completedAt: undefined,
+          description: 'Season prize pool payout (pending)',
+          metadata: { seasonId: 'season-2', placement: 'P1-P3' },
+        });
+
+        transactions.push(pendingPrize);
+      }
+
+      wallets.push(wallet);
+    }
+
+    return { wallets, transactions };
+  }
+
+  private pickTransactionType(index: number, leagueId: string) {
+    if (leagueId === 'league-5') {
+      const types = [
+        'sponsorship_payment',
+        'membership_payment',
+        'membership_payment',
+        'sponsorship_payment',
+        'prize_payout',
+        'withdrawal',
+      ] as const;
+      return types[index % types.length]!;
+    }
+
+    const types = [
+      'membership_payment',
+      'sponsorship_payment',
+      'membership_payment',
+      'withdrawal',
+      'refund',
+      'prize_payout',
+    ] as const;
+
+    return types[index % types.length]!;
+  }
+
+  private pickAmount(type: Transaction['type'], currency: 'USD' | 'EUR' | 'GBP', leagueId: string): Money {
+    const asUsd = (amount: number) => Money.create(amount, currency);
+
+    switch (type) {
+      case 'sponsorship_payment':
+        return asUsd(leagueId === 'league-5' ? faker.number.int({ min: 400, max: 1600 }) : faker.number.int({ min: 150, max: 2400 }));
+      case 'membership_payment':
+        return asUsd(faker.number.int({ min: 10, max: 120 }));
+      case 'withdrawal':
+        return asUsd(faker.number.int({ min: 25, max: 800 }));
+      case 'refund':
+        return asUsd(faker.number.int({ min: 10, max: 150 }));
+      case 'prize_payout':
+        return asUsd(faker.number.int({ min: 100, max: 1500 }));
+    }
+  }
+
+  private pickStatus(type: Transaction['type'], index: number, leagueId: string): Transaction['status'] {
+    if (leagueId === 'league-5') {
+      if (type === 'withdrawal' && index % 2 === 0) return 'completed';
+      if (type === 'prize_payout' && index % 3 === 0) return 'pending';
+      return 'completed';
+    }
+
+    if (type === 'withdrawal') {
+      return faker.helpers.arrayElement(['completed', 'pending', 'failed'] as const);
+    }
+
+    if (type === 'refund') {
+      return faker.helpers.arrayElement(['completed', 'cancelled'] as const);
+    }
+
+    return faker.helpers.arrayElement(['completed', 'pending'] as const);
+  }
+
+  private describe(type: Transaction['type'], leagueId: string): string {
+    switch (type) {
+      case 'sponsorship_payment':
+        return leagueId === 'league-5' ? 'Season sponsorship payment' : 'Sponsorship payment';
+      case 'membership_payment':
+        return 'Membership fee';
+      case 'withdrawal':
+        return 'Owner withdrawal';
+      case 'refund':
+        return 'Refund processed';
+      case 'prize_payout':
+        return 'Prize payout';
+    }
+  }
+}
\ No newline at end of file
diff --git a/adapters/bootstrap/racing/RacingMembershipFactory.ts b/adapters/bootstrap/racing/RacingMembershipFactory.ts
index 284ae8539..3f3be531b 100644
--- a/adapters/bootstrap/racing/RacingMembershipFactory.ts
+++ b/adapters/bootstrap/racing/RacingMembershipFactory.ts
@@ -1,5 +1,6 @@
 import { Driver } from '@core/racing/domain/entities/Driver';
 import { League } from '@core/racing/domain/entities/League';
+import { JoinRequest } from '@core/racing/domain/entities/JoinRequest';
 import { LeagueMembership } from '@core/racing/domain/entities/LeagueMembership';
 import { Race } from '@core/racing/domain/entities/Race';
 import { RaceRegistration } from '@core/racing/domain/entities/RaceRegistration';
@@ -9,44 +10,308 @@ export class RacingMembershipFactory {
 
   createLeagueMemberships(drivers: Driver[], leagues: League[]): LeagueMembership[] {
     const memberships: LeagueMembership[] = [];
+    const leagueById = new Map(leagues.map(l => [l.id.toString(), l]));
 
-    for (const driver of drivers) {
-      const driverId = driver.id;
-
+    const add = (props: {
+      leagueId: string;
+      driverId: string;
+      role: 'owner' | 'admin' | 'steward' | 'member';
+      status: 'active' | 'inactive' | 'pending';
+      joinedDaysAgo: number;
+      id?: string;
+    }): void => {
       memberships.push(
         LeagueMembership.create({
-          leagueId: 'league-5',
-          driverId,
-          role: driverId === 'driver-1' ? 'owner' : 'member',
-          status: 'active',
-          joinedAt: this.addDays(this.baseDate, -60),
+          leagueId: props.leagueId,
+          driverId: props.driverId,
+          role: props.role,
+          status: props.status,
+          joinedAt: this.addDays(this.baseDate, -props.joinedDaysAgo),
+          ...(props.id !== undefined ? { id: props.id } : {}),
         }),
       );
+    };
 
+    // Empty league: intentionally no memberships.
+    // (Keep `league-2` empty if it exists.)
+    // Widen the type to avoid TS2367 “no overlap” comparisons in some build modes.
+    const emptyLeagueId: string | undefined = leagueById.has('league-2') ? ('league-2' as string) : undefined;
+
+    // Demo league: "full" + overbooked with pending/inactive members.
+    const demoLeague = leagueById.get('league-5');
+    if (demoLeague) {
+      const maxDrivers = demoLeague.settings.maxDrivers ?? 32;
+      const activeDrivers = drivers.slice(0, Math.min(maxDrivers, drivers.length));
+
+      activeDrivers.forEach((driver, idx) => {
+        const driverId = driver.id.toString();
+        const role =
+          driverId === 'driver-1'
+            ? 'owner'
+            : idx === 1 || idx === 2
+              ? 'admin'
+              : idx === 3 || idx === 4
+                ? 'steward'
+                : 'member';
+
+        add({ leagueId: demoLeague.id.toString(), driverId, role, status: 'active', joinedDaysAgo: 60 - idx });
+      });
+
+      // Over-cap edge cases (membership exists but not active / pending)
+      const overbooked = drivers.slice(activeDrivers.length, activeDrivers.length + 4);
+      overbooked.forEach((driver, idx) => {
+        add({
+          leagueId: demoLeague.id.toString(),
+          driverId: driver.id.toString(),
+          role: 'member',
+          status: idx % 2 === 0 ? 'pending' : 'inactive',
+          joinedDaysAgo: 10 + idx,
+        });
+      });
+    }
+
+    // League with mixed statuses and roles (but not full).
+    const league1 = leagueById.get('league-1');
+    if (league1) {
+      const pick = drivers.slice(15, 25);
+      pick.forEach((driver, idx) => {
+        add({
+          leagueId: league1.id.toString(),
+          driverId: driver.id.toString(),
+          role: idx === 0 ? 'owner' : idx === 1 ? 'steward' : 'member',
+          status: idx % 5 === 0 ? 'pending' : idx % 7 === 0 ? 'inactive' : 'active',
+          joinedDaysAgo: 30 + idx,
+        });
+      });
+    }
+
+    // League with only pending memberships (tests "pending list" UX).
+    const league4 = leagueById.get('league-4');
+    if (league4) {
+      drivers.slice(40, 48).forEach((driver, idx) => {
+        add({
+          leagueId: league4.id.toString(),
+          driverId: driver.id.toString(),
+          role: idx === 0 ? 'owner' : 'member',
+          status: 'pending',
+          joinedDaysAgo: 3 + idx,
+        });
+      });
+    }
+
+    // Spread remaining drivers across remaining leagues to create realistic overlap.
+    for (const driver of drivers) {
+      const driverId = driver.id.toString();
       const driverNumber = Number(driverId.split('-')[1]);
-      const extraLeague = leagues[(driverNumber % (leagues.length - 1)) + 1];
 
-      if (extraLeague) {
-        memberships.push(
-          LeagueMembership.create({
-            leagueId: extraLeague.id.toString(),
+      for (const league of leagues) {
+        const leagueId = league.id.toString();
+        if (leagueId === 'league-5') continue;
+        if (emptyLeagueId && leagueId === emptyLeagueId) continue;
+
+        if (driverNumber % 11 === 0 && leagueId === 'league-3') {
+          add({
+            leagueId,
+            driverId,
+            role: 'member',
+            status: 'inactive',
+            joinedDaysAgo: 120,
+          });
+          continue;
+        }
+
+        // Sparse membership distribution (not every driver in every league)
+        if ((driverNumber + Number(leagueId.split('-')[1] ?? 0)) % 9 === 0) {
+          add({
+            leagueId,
             driverId,
             role: 'member',
             status: 'active',
-            joinedAt: this.addDays(this.baseDate, -40),
-          }),
-        );
+            joinedDaysAgo: 45,
+          });
+        }
       }
     }
 
     return memberships;
   }
 
-  createRaceRegistrations(races: Race[]): RaceRegistration[] {
+  createLeagueJoinRequests(
+    drivers: Driver[],
+    leagues: League[],
+    leagueMemberships: LeagueMembership[],
+  ): JoinRequest[] {
+    const membershipIds = new Set<string>(leagueMemberships.map(m => m.id.toString()));
+    const requests: JoinRequest[] = [];
+
+    const addRequest = (input: { leagueId: string; driverId: string; id?: string; message?: string; requestedAt?: Date }) => {
+      requests.push(
+        JoinRequest.create({
+          leagueId: input.leagueId,
+          driverId: input.driverId,
+          ...(input.id !== undefined && { id: input.id }),
+          ...(input.message !== undefined && { message: input.message }),
+          ...(input.requestedAt !== undefined && { requestedAt: input.requestedAt }),
+        }),
+      );
+    };
+
+    // League with lots of requests + membership/request conflicts (everyone is a member of league-5 already).
+    const demoLeagueId = 'league-5';
+    const demoDrivers = drivers.slice(10, 35);
+    demoDrivers.forEach((driver, idx) => {
+      const message =
+        idx % 4 === 0
+          ? 'Interested in consistent stewarding and clean racing.'
+          : idx % 4 === 1
+            ? undefined
+            : idx % 4 === 2
+              ? ''
+              : 'Can I join mid-season and still be eligible for points?';
+
+      addRequest({
+        leagueId: demoLeagueId,
+        driverId: driver.id.toString(),
+        requestedAt: this.addDays(this.baseDate, -(7 + idx)),
+        ...(message !== undefined && { message }),
+      });
+    });
+
+    // League with a few "normal" requests (only drivers who are NOT members already).
+    const targetLeagueId = 'league-1';
+    const nonMembers = drivers
+      .filter(driver => !membershipIds.has(`${targetLeagueId}:${driver.id.toString()}`))
+      .slice(0, 6);
+
+    nonMembers.forEach((driver, idx) => {
+      addRequest({
+        leagueId: targetLeagueId,
+        driverId: driver.id.toString(),
+        requestedAt: this.addDays(this.baseDate, -(3 + idx)),
+        ...(idx % 2 === 0 && { message: 'Looking for regular endurance rounds and stable race times.' }),
+      });
+    });
+
+    // Single request with no message (explicit id).
+    const league3Exists = leagues.some(l => l.id.toString() === 'league-3');
+    if (league3Exists && drivers[0]) {
+      addRequest({
+        id: 'league-3-join-req-1',
+        leagueId: 'league-3',
+        driverId: drivers[0].id.toString(),
+        requestedAt: this.addDays(this.baseDate, -9),
+      });
+    }
+
+    // Duplicate id edge case (last write wins in in-memory repo).
+    if (drivers[1]) {
+      addRequest({
+        id: 'dup-league-join-req-1',
+        leagueId: 'league-7',
+        driverId: drivers[1].id.toString(),
+        requestedAt: this.addDays(this.baseDate, -2),
+        message: 'First request message (will be overwritten).',
+      });
+
+      addRequest({
+        id: 'dup-league-join-req-1',
+        leagueId: 'league-7',
+        driverId: drivers[1].id.toString(),
+        requestedAt: this.addDays(this.baseDate, -1),
+        message: 'Updated request message (duplicate id).',
+      });
+    }
+
+    // Explicit conflict: join request exists even though membership exists.
+    const driver1 = drivers.find(d => d.id.toString() === 'driver-1');
+    if (driver1) {
+      addRequest({
+        id: 'conflict-req-league-5-driver-1',
+        leagueId: demoLeagueId,
+        driverId: driver1.id.toString(),
+        requestedAt: this.addDays(this.baseDate, -15),
+        message: 'Testing UI edge case: request exists for an existing member.',
+      });
+    }
+
+    return requests;
+  }
+
+  createRaceRegistrations(
+    races: Race[],
+    drivers: Driver[],
+    leagueMemberships: LeagueMembership[],
+  ): RaceRegistration[] {
     const registrations: RaceRegistration[] = [];
+    const activeMembershipKey = new Set(
+      leagueMemberships
+        .filter(m => m.status.toString() === 'active')
+        .map(m => `${m.leagueId.toString()}:${m.driverId.toString()}`),
+    );
 
+    const scheduled = races.filter((r) => r.status === 'scheduled');
+
+    for (const race of scheduled) {
+      const leagueId = race.leagueId.toString();
+      const targetCount = (race as unknown as { registeredCount?: number }).registeredCount ?? 0;
+
+      // 25%: intentionally no registrations
+      if (Number(race.id.toString().split('-')[1] ?? 0) % 4 === 0) {
+        continue;
+      }
+
+      const eligibleDrivers = drivers
+        .map(d => d.id.toString())
+        .filter(driverId => activeMembershipKey.has(`${leagueId}:${driverId}`));
+
+      const desired = Math.min(
+        eligibleDrivers.length,
+        Math.max(1, targetCount > 0 ? targetCount : 3),
+      );
+
+      const start = Number(race.id.toString().split('-')[1] ?? 0);
+      for (let i = 0; i < desired; i++) {
+        const driverId = eligibleDrivers[(start + i) % eligibleDrivers.length];
+        if (!driverId) continue;
+
+        registrations.push(
+          RaceRegistration.create({
+            raceId: race.id,
+            driverId,
+          }),
+        );
+      }
+
+      // Edge case: one "outsider" registration (driver not active in league)
+      if (eligibleDrivers.length > 0 && drivers.length > eligibleDrivers.length) {
+        const outsider = drivers
+          .map(d => d.id.toString())
+          .find(driverId => !activeMembershipKey.has(`${leagueId}:${driverId}`));
+
+        if (outsider && start % 7 === 0) {
+          registrations.push(
+            RaceRegistration.create({
+              raceId: race.id,
+              driverId: outsider,
+            }),
+          );
+        }
+      }
+
+      // Edge case: duplicate registration (should be ignored by repo if unique constrained)
+      if (start % 9 === 0 && registrations.length > 0) {
+        const last = registrations[registrations.length - 1]!;
+        registrations.push(
+          RaceRegistration.create({
+            raceId: last.raceId.toString(),
+            driverId: last.driverId.toString(),
+          }),
+        );
+      }
+    }
+
+    // Keep a tiny curated "happy path" for the demo league as well
     const upcomingDemoLeague = races.filter((r) => r.status === 'scheduled' && r.leagueId === 'league-5').slice(0, 3);
-
     for (const race of upcomingDemoLeague) {
       registrations.push(
         RaceRegistration.create({
diff --git a/adapters/bootstrap/racing/RacingResultFactory.ts b/adapters/bootstrap/racing/RacingResultFactory.ts
index ea93b4483..85eb63b41 100644
--- a/adapters/bootstrap/racing/RacingResultFactory.ts
+++ b/adapters/bootstrap/racing/RacingResultFactory.ts
@@ -8,12 +8,45 @@ export class RacingResultFactory {
     const completed = races.filter((r) => r.status === 'completed');
 
     for (const race of completed) {
-      const participants = drivers.slice(0, Math.min(16, drivers.length));
+      if (drivers.length === 0) continue;
 
-      for (let idx = 0; idx < participants.length; idx++) {
-        const driver = participants[idx]!;
+      const rng = this.mulberry32(this.hashToSeed(`${race.id}:${race.leagueId}:${race.trackId}`));
+
+      const minSize = Math.min(6, drivers.length);
+      const maxSize = Math.min(26, drivers.length);
+      const participantCount = Math.max(
+        minSize,
+        Math.min(maxSize, minSize + Math.floor(rng() * (maxSize - minSize + 1))),
+      );
+
+      const offset = Math.floor(rng() * drivers.length);
+      const participants = Array.from({ length: participantCount }, (_, idx) => drivers[(offset + idx) % drivers.length]!);
+
+      const finishOrder = [...participants];
+      this.shuffleInPlace(finishOrder, rng);
+
+      const gridOrder = [...participants];
+      this.shuffleInPlace(gridOrder, rng);
+
+      const baseLap = 82_000 + Math.floor(rng() * 12_000); // 1:22.000 - 1:34.000-ish
+
+      for (let idx = 0; idx < finishOrder.length; idx++) {
+        const driver = finishOrder[idx]!;
         const position = idx + 1;
-        const startPosition = ((idx + 3) % participants.length) + 1;
+
+        const startPosition = gridOrder.findIndex(d => d.id.toString() === driver.id.toString()) + 1;
+
+        const lapJitter = Math.floor(rng() * 900);
+        const fastestLap = baseLap + lapJitter + (position - 1) * 35;
+
+        const incidents =
+          rng() < 0.55
+            ? 0
+            : rng() < 0.85
+              ? 1
+              : rng() < 0.95
+                ? 2
+                : 3 + Math.floor(rng() * 6);
 
         results.push(
           RaceResult.create({
@@ -21,9 +54,9 @@ export class RacingResultFactory {
             raceId: race.id,
             driverId: driver.id,
             position,
-            startPosition,
-            fastestLap: 88_000 + idx * 120,
-            incidents: idx % 4 === 0 ? 2 : 0,
+            startPosition: Math.max(1, startPosition),
+            fastestLap,
+            incidents,
           }),
         );
       }
@@ -31,4 +64,33 @@ export class RacingResultFactory {
 
     return results;
   }
+
+  private shuffleInPlace<T>(items: T[], rng: () => number): void {
+    for (let i = items.length - 1; i > 0; i--) {
+      const j = Math.floor(rng() * (i + 1));
+      const tmp = items[i]!;
+      items[i] = items[j]!;
+      items[j] = tmp;
+    }
+  }
+
+  private hashToSeed(input: string): number {
+    let hash = 2166136261;
+    for (let i = 0; i < input.length; i++) {
+      hash ^= input.charCodeAt(i);
+      hash = Math.imul(hash, 16777619);
+    }
+    return hash >>> 0;
+  }
+
+  private mulberry32(seed: number): () => number {
+    let a = seed >>> 0;
+    return () => {
+      a |= 0;
+      a = (a + 0x6D2B79F5) | 0;
+      let t = Math.imul(a ^ (a >>> 15), 1 | a);
+      t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t;
+      return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
+    };
+  }
 }
\ No newline at end of file
diff --git a/adapters/bootstrap/racing/RacingSeasonSponsorshipFactory.ts b/adapters/bootstrap/racing/RacingSeasonSponsorshipFactory.ts
new file mode 100644
index 000000000..70ebcad35
--- /dev/null
+++ b/adapters/bootstrap/racing/RacingSeasonSponsorshipFactory.ts
@@ -0,0 +1,248 @@
+import { faker } from '@faker-js/faker';
+import type { League } from '@core/racing/domain/entities/League';
+import { SponsorshipRequest } from '@core/racing/domain/entities/SponsorshipRequest';
+import { Season } from '@core/racing/domain/entities/season/Season';
+import { SeasonSponsorship } from '@core/racing/domain/entities/season/SeasonSponsorship';
+import type { Sponsor } from '@core/racing/domain/entities/sponsor/Sponsor';
+import { Money } from '@core/racing/domain/value-objects/Money';
+
+export class RacingSeasonSponsorshipFactory {
+  constructor(private readonly baseDate: Date) {}
+
+  createSeasons(leagues: League[]): Season[] {
+    const seasons: Season[] = [];
+
+    for (const league of leagues) {
+      const leagueId = league.id.toString();
+
+      if (leagueId === 'league-5') {
+        seasons.push(
+          Season.create({
+            id: 'season-1',
+            leagueId,
+            gameId: 'iracing',
+            name: 'Season 1 (GT Sprint)',
+            year: 2025,
+            order: 1,
+            status: 'active',
+            startDate: this.daysFromBase(-30),
+          }),
+          Season.create({
+            id: 'season-2',
+            leagueId,
+            gameId: 'iracing',
+            name: 'Season 2 (Endurance Cup)',
+            year: 2024,
+            order: 0,
+            status: 'completed',
+            startDate: this.daysFromBase(-120),
+            endDate: this.daysFromBase(-60),
+          }),
+          Season.create({
+            id: 'season-3',
+            leagueId,
+            gameId: 'iracing',
+            name: 'Season 3 (Planned)',
+            year: 2025,
+            order: 2,
+            status: 'planned',
+            startDate: this.daysFromBase(14),
+          }),
+        );
+        continue;
+      }
+
+      if (leagueId === 'league-3') {
+        seasons.push(
+          Season.create({
+            id: 'league-3-season-a',
+            leagueId,
+            gameId: 'iracing',
+            name: 'Split Season A',
+            year: 2025,
+            order: 1,
+            status: 'active',
+            startDate: this.daysFromBase(-10),
+          }),
+          Season.create({
+            id: 'league-3-season-b',
+            leagueId,
+            gameId: 'iracing',
+            name: 'Split Season B',
+            year: 2025,
+            order: 2,
+            status: 'active',
+            startDate: this.daysFromBase(-3),
+          }),
+        );
+        continue;
+      }
+
+      const baseYear = this.baseDate.getUTCFullYear();
+      const seasonCount = leagueId === 'league-2' ? 1 : faker.number.int({ min: 1, max: 3 });
+
+      for (let i = 0; i < seasonCount; i++) {
+        const id = `${leagueId}-season-${i + 1}`;
+        const isFirst = i === 0;
+
+        const status: Season['status'] =
+          leagueId === 'league-1' && isFirst
+            ? 'active'
+            : leagueId === 'league-2'
+              ? 'planned'
+              : isFirst
+                ? faker.helpers.arrayElement(['active', 'planned'] as const)
+                : faker.helpers.arrayElement(['completed', 'archived', 'cancelled'] as const);
+
+        const startOffset =
+          status === 'active'
+            ? faker.number.int({ min: -60, max: -1 })
+            : status === 'planned'
+              ? faker.number.int({ min: 7, max: 60 })
+              : faker.number.int({ min: -200, max: -90 });
+
+        const endOffset =
+          status === 'completed' || status === 'archived' || status === 'cancelled'
+            ? faker.number.int({ min: -89, max: -7 })
+            : undefined;
+
+        seasons.push(
+          Season.create({
+            id,
+            leagueId,
+            gameId: 'iracing',
+            name: `${faker.word.adjective()} ${faker.word.noun()} Season`,
+            year: baseYear + faker.number.int({ min: -1, max: 1 }),
+            order: i + 1,
+            status,
+            startDate: this.daysFromBase(startOffset),
+            ...(endOffset !== undefined ? { endDate: this.daysFromBase(endOffset) } : {}),
+          }),
+        );
+      }
+    }
+
+    return seasons;
+  }
+
+  createSeasonSponsorships(seasons: Season[], sponsors: Sponsor[]): SeasonSponsorship[] {
+    const sponsorships: SeasonSponsorship[] = [];
+    const sponsorIds = sponsors.map((s) => s.id.toString());
+
+    for (const season of seasons) {
+      const sponsorshipCount =
+        season.id === 'season-1'
+          ? 2
+          : season.status === 'active'
+            ? faker.number.int({ min: 0, max: 2 })
+            : faker.number.int({ min: 0, max: 1 });
+
+      const usedSponsorIds = new Set<string>();
+
+      for (let i = 0; i < sponsorshipCount; i++) {
+        const tier: SeasonSponsorship['tier'] =
+          i === 0 ? 'main' : faker.helpers.arrayElement(['secondary', 'secondary', 'main'] as const);
+
+        const sponsorIdCandidate = faker.helpers.arrayElement(sponsorIds);
+        const sponsorId = usedSponsorIds.has(sponsorIdCandidate)
+          ? faker.helpers.arrayElement(sponsorIds)
+          : sponsorIdCandidate;
+
+        usedSponsorIds.add(sponsorId);
+
+        const base = SeasonSponsorship.create({
+          id: `season-sponsorship-${season.id}-${i + 1}`,
+          seasonId: season.id,
+          leagueId: season.leagueId,
+          sponsorId,
+          tier,
+          pricing: Money.create(
+            tier === 'main' ? faker.number.int({ min: 900, max: 2500 }) : faker.number.int({ min: 250, max: 900 }),
+            'USD',
+          ),
+          createdAt: faker.date.recent({ days: 120, refDate: this.baseDate }),
+          description: tier === 'main' ? 'Main sponsor slot' : 'Secondary sponsor slot',
+          ...(season.status === 'active'
+            ? {
+                status: faker.helpers.arrayElement(['active', 'pending'] as const),
+                activatedAt: faker.date.recent({ days: 30, refDate: this.baseDate }),
+              }
+            : season.status === 'completed' || season.status === 'archived'
+              ? {
+                  status: faker.helpers.arrayElement(['ended', 'cancelled'] as const),
+                  endedAt: faker.date.recent({ days: 200, refDate: this.baseDate }),
+                }
+              : {
+                  status: faker.helpers.arrayElement(['pending', 'cancelled'] as const),
+                }),
+        });
+
+        sponsorships.push(base);
+      }
+    }
+
+    return sponsorships;
+  }
+
+  createSponsorshipRequests(seasons: Season[], sponsors: Sponsor[]): SponsorshipRequest[] {
+    const requests: SponsorshipRequest[] = [];
+    const sponsorIds = sponsors.map((s) => s.id.toString());
+
+    for (const season of seasons) {
+      const isHighTrafficDemo = season.id === 'season-1';
+      const maxRequests =
+        isHighTrafficDemo ? 8 : season.status === 'active' ? faker.number.int({ min: 0, max: 4 }) : faker.number.int({ min: 0, max: 1 });
+
+      for (let i = 0; i < maxRequests; i++) {
+        const tier: SponsorshipRequest['tier'] =
+          i === 0 ? 'main' : faker.helpers.arrayElement(['secondary', 'secondary', 'main'] as const);
+
+        const sponsorId =
+          isHighTrafficDemo && i === 0
+            ? 'demo-sponsor-1'
+            : faker.helpers.arrayElement(sponsorIds);
+
+        const offeredAmount = Money.create(
+          tier === 'main' ? faker.number.int({ min: 1000, max: 3500 }) : faker.number.int({ min: 200, max: 1200 }),
+          'USD',
+        );
+
+        const includeMessage = i % 3 !== 0;
+        const message = includeMessage
+          ? faker.helpers.arrayElement([
+              'We would love to sponsor this season — high-quality sim racing content fits our brand.',
+              'We can provide prize pool support + gear giveaways for podium finishers.',
+              'Interested in the main slot: branding on liveries + broadcast overlays.',
+              'We want a secondary slot to test engagement before a bigger commitment.',
+            ])
+          : undefined;
+
+        // A mix of statuses for edge cases (pending is what the UI lists)
+        const status =
+          season.status === 'active'
+            ? faker.helpers.arrayElement(['pending', 'pending', 'pending', 'rejected', 'withdrawn'] as const)
+            : faker.helpers.arrayElement(['pending', 'rejected'] as const);
+
+        requests.push(
+          SponsorshipRequest.create({
+            id: `sponsorship-request-${season.id}-${i + 1}`,
+            sponsorId,
+            entityType: 'season',
+            entityId: season.id,
+            tier,
+            offeredAmount,
+            ...(message !== undefined ? { message } : {}),
+            status,
+            createdAt: faker.date.recent({ days: 60, refDate: this.baseDate }),
+          }),
+        );
+      }
+    }
+
+    return requests;
+  }
+
+  private daysFromBase(days: number): Date {
+    return new Date(this.baseDate.getTime() + days * 24 * 60 * 60 * 1000);
+  }
+}
\ No newline at end of file
diff --git a/adapters/bootstrap/racing/RacingSeed.ts b/adapters/bootstrap/racing/RacingSeed.ts
index 559ff0d08..b06e18046 100644
--- a/adapters/bootstrap/racing/RacingSeed.ts
+++ b/adapters/bootstrap/racing/RacingSeed.ts
@@ -7,7 +7,12 @@ import { Result as RaceResult } from '@core/racing/domain/entities/result/Result
 import { Standing } from '@core/racing/domain/entities/Standing';
 import { Team } from '@core/racing/domain/entities/Team';
 import { Track } from '@core/racing/domain/entities/Track';
-import type { TeamMembership } from '@core/racing/domain/types/TeamMembership';
+import { JoinRequest } from '@core/racing/domain/entities/JoinRequest';
+import { SponsorshipRequest } from '@core/racing/domain/entities/SponsorshipRequest';
+import { Sponsor } from '@core/racing/domain/entities/sponsor/Sponsor';
+import { Season } from '@core/racing/domain/entities/season/Season';
+import { SeasonSponsorship } from '@core/racing/domain/entities/season/SeasonSponsorship';
+import type { TeamJoinRequest, TeamMembership } from '@core/racing/domain/types/TeamMembership';
 import type { FeedItem } from '@core/social/domain/types/FeedItem';
 import { RacingDriverFactory } from './RacingDriverFactory';
 import { RacingFeedFactory } from './RacingFeedFactory';
@@ -19,6 +24,10 @@ import { RacingResultFactory } from './RacingResultFactory';
 import { RacingStandingFactory } from './RacingStandingFactory';
 import { RacingTeamFactory } from './RacingTeamFactory';
 import { RacingTrackFactory } from './RacingTrackFactory';
+import { RacingSponsorFactory } from './RacingSponsorFactory';
+import { RacingSeasonSponsorshipFactory } from './RacingSeasonSponsorshipFactory';
+import { RacingLeagueWalletFactory } from './RacingLeagueWalletFactory';
+import { RacingStewardingFactory } from './RacingStewardingFactory';
 
 export type Friendship = {
   driverId: string;
@@ -28,13 +37,23 @@ export type Friendship = {
 export type RacingSeed = {
   drivers: Driver[];
   leagues: League[];
+  seasons: Season[];
+  seasonSponsorships: SeasonSponsorship[];
+  sponsorshipRequests: SponsorshipRequest[];
+  leagueWallets: import('@core/racing/domain/entities/league-wallet/LeagueWallet').LeagueWallet[];
+  leagueWalletTransactions: import('@core/racing/domain/entities/league-wallet/Transaction').Transaction[];
+  protests: import('@core/racing/domain/entities/Protest').Protest[];
+  penalties: import('@core/racing/domain/entities/penalty/Penalty').Penalty[];
   races: Race[];
   results: RaceResult[];
   standings: Standing[];
   leagueMemberships: LeagueMembership[];
+  leagueJoinRequests: JoinRequest[];
   raceRegistrations: RaceRegistration[];
   teams: Team[];
   teamMemberships: TeamMembership[];
+  teamJoinRequests: TeamJoinRequest[];
+  sponsors: Sponsor[];
   tracks: Track[];
   friendships: Friendship[];
   feedEvents: FeedItem[];
@@ -68,6 +87,9 @@ class RacingSeedFactory {
     const resultFactory = new RacingResultFactory();
     const standingFactory = new RacingStandingFactory();
     const membershipFactory = new RacingMembershipFactory(this.baseDate);
+    const sponsorFactory = new RacingSponsorFactory(this.baseDate);
+    const seasonSponsorshipFactory = new RacingSeasonSponsorshipFactory(this.baseDate);
+    const leagueWalletFactory = new RacingLeagueWalletFactory(this.baseDate);
     const friendshipFactory = new RacingFriendshipFactory();
     const feedFactory = new RacingFeedFactory(this.baseDate);
 
@@ -75,27 +97,51 @@ class RacingSeedFactory {
     const tracks = trackFactory.create();
     const leagueFactory = new RacingLeagueFactory(this.baseDate, drivers);
     const leagues = leagueFactory.create();
-    const teamFactory = new RacingTeamFactory(this.baseDate, drivers, leagues);
-    const teams = teamFactory.createTeams();
+    const sponsors = sponsorFactory.create();
+    const seasons = seasonSponsorshipFactory.createSeasons(leagues);
+    const seasonSponsorships = seasonSponsorshipFactory.createSeasonSponsorships(seasons, sponsors);
+    const sponsorshipRequests = seasonSponsorshipFactory.createSponsorshipRequests(seasons, sponsors);
+
+    const leagueMemberships = membershipFactory.createLeagueMemberships(drivers, leagues);
+    const leagueJoinRequests = membershipFactory.createLeagueJoinRequests(drivers, leagues, leagueMemberships);
+
+    const { wallets: leagueWallets, transactions: leagueWalletTransactions } = leagueWalletFactory.create(leagues);
+
+    const teamFactory = new RacingTeamFactory(this.baseDate);
+    const teams = teamFactory.createTeams(drivers, leagues);
     const races = raceFactory.create(leagues, tracks);
     const results = resultFactory.create(drivers, races);
     const standings = standingFactory.create(leagues, races, results);
-    const leagueMemberships = membershipFactory.createLeagueMemberships(drivers, leagues);
-    const raceRegistrations = membershipFactory.createRaceRegistrations(races);
+    const raceRegistrations = membershipFactory.createRaceRegistrations(races, drivers, leagueMemberships);
     const teamMemberships = teamFactory.createTeamMemberships(drivers, teams);
+    const teamJoinRequests = teamFactory.createTeamJoinRequests(drivers, teams, teamMemberships);
+
+    const stewardingFactory = new RacingStewardingFactory(this.baseDate);
+    const { protests, penalties } = stewardingFactory.create(races, drivers, leagueMemberships);
+
     const friendships = friendshipFactory.create(drivers);
     const feedEvents = feedFactory.create(drivers, friendships, races, leagues);
 
     return {
       drivers,
       leagues,
+      seasons,
+      seasonSponsorships,
+      sponsorshipRequests,
+      leagueWallets,
+      leagueWalletTransactions,
+      protests,
+      penalties,
       races,
       results,
       standings,
       leagueMemberships,
+      leagueJoinRequests,
       raceRegistrations,
       teams,
       teamMemberships,
+      teamJoinRequests,
+      sponsors,
       tracks,
       friendships,
       feedEvents,
diff --git a/adapters/bootstrap/racing/RacingSponsorFactory.ts b/adapters/bootstrap/racing/RacingSponsorFactory.ts
new file mode 100644
index 000000000..caea40337
--- /dev/null
+++ b/adapters/bootstrap/racing/RacingSponsorFactory.ts
@@ -0,0 +1,125 @@
+import { Sponsor } from '@core/racing/domain/entities/sponsor/Sponsor';
+import { faker } from '@faker-js/faker';
+
+export class RacingSponsorFactory {
+  constructor(private readonly baseDate: Date) {}
+
+  create(): Sponsor[] {
+    const demoSponsor = Sponsor.create({
+      id: 'demo-sponsor-1',
+      name: 'GridPilot Sim Racing Supply',
+      contactEmail: 'partnerships@gridpilot.example',
+      logoUrl: 'http://localhost:3000/images/header.jpeg',
+      websiteUrl: 'https://gridpilot.example/sponsors/gridpilot-sim-racing-supply',
+      createdAt: faker.date.past({ years: 2, refDate: this.baseDate }),
+    });
+
+    const sponsorCount = 49;
+
+    const sponsorNames = [
+      'Red Bull Energy',
+      'Shell Racing',
+      'Michelin Tires',
+      'Castrol Oil',
+      'Pirelli Tires',
+      'Goodyear Tires',
+      'Bridgestone',
+      'Continental Tires',
+      'Dunlop Tires',
+      'Yokohama Tires',
+      'Hankook Tires',
+      'BFGoodrich',
+      'Firestone Tires',
+      'Kumho Tires',
+      'Nexen Tires',
+      'Falken Tires',
+      'Toyo Tires',
+      'Maxxis Tires',
+      'Cooper Tires',
+      'General Tires',
+      'Sparco Motorsport',
+      'OMP Racing',
+      'Simucube',
+      'Fanatec',
+      'Moza Racing',
+      'Heusinkveld Engineering',
+      'Next Level Racing',
+      'Thrustmaster Racing',
+      'Logitech G Racing',
+      'GoPro Motorsports',
+      'VRS DirectForce',
+      'Ascher Racing',
+      'RaceRoom Store',
+      'iRacing Credits',
+      'Assetto Corsa Competizione',
+      'RaceDepartment',
+      'SimRacing.GP',
+      'Grid Finder',
+      'Racing Gloves Co.',
+      'Hydration Labs',
+      'Energy Bar Co.',
+      'Broadcast Overlay Studio',
+      'Carbon Fiber Works',
+      'Brake Pad Supply',
+      'Pit Strategy Analytics',
+      'Telemetry Tools',
+      'Setup Shop',
+      'Streaming Partner',
+      'Hardware Tuning Lab',
+      'Trackside Media',
+    ];
+
+    const logoPaths = [
+      'http://localhost:3000/images/header.jpeg',
+      'http://localhost:3000/images/ff1600.jpeg',
+      'http://localhost:3000/images/avatars/male-default-avatar.jpg',
+      'http://localhost:3000/images/avatars/female-default-avatar.jpeg',
+      'http://localhost:3000/images/avatars/neutral-default-avatar.jpeg',
+      'http://localhost:3000/images/leagues/placeholder-cover.svg',
+      'http://localhost:3000/favicon.svg',
+    ];
+
+    const websiteUrls = [
+      'https://www.redbull.com',
+      'https://www.shell.com',
+      'https://www.michelin.com',
+      'https://www.castrol.com',
+      'https://www.pirelli.com',
+      'https://www.goodyear.com',
+      'https://www.bridgestone.com',
+      'https://www.continental-tires.com',
+      'https://www.dunlop.eu',
+      'https://www.yokohamatire.com',
+      'https://www.hankooktire.com',
+      'https://www.sparco-official.com',
+      'https://www.omp.com',
+      'https://fanatec.com',
+      'https://mozaracing.com',
+      'https://heusinkveld.com',
+      'https://nextlevelracing.com',
+      'https://www.thrustmaster.com',
+      'https://www.logitechg.com',
+      'https://gopro.com',
+    ];
+
+    const sponsors = Array.from({ length: sponsorCount }, (_, idx) => {
+      const i = idx + 1;
+      const name = sponsorNames[idx % sponsorNames.length]!;
+      const safeName = name.replace(/\s+/g, '').toLowerCase();
+
+      const logoUrl = logoPaths[idx % logoPaths.length]!;
+      const websiteUrl = websiteUrls[idx % websiteUrls.length]!;
+
+      return Sponsor.create({
+        id: `sponsor-${i}`,
+        name,
+        contactEmail: `partnerships+${safeName}@example.com`,
+        ...(logoUrl ? { logoUrl } : {}),
+        ...(websiteUrl ? { websiteUrl } : {}),
+        createdAt: faker.date.past({ years: 5, refDate: this.baseDate }),
+      });
+    });
+
+    return [demoSponsor, ...sponsors];
+  }
+}
\ No newline at end of file
diff --git a/adapters/bootstrap/racing/RacingStewardingFactory.ts b/adapters/bootstrap/racing/RacingStewardingFactory.ts
new file mode 100644
index 000000000..5cc99b308
--- /dev/null
+++ b/adapters/bootstrap/racing/RacingStewardingFactory.ts
@@ -0,0 +1,260 @@
+import { faker } from '@faker-js/faker';
+import type { Driver } from '@core/racing/domain/entities/Driver';
+import type { LeagueMembership } from '@core/racing/domain/entities/LeagueMembership';
+import { Protest } from '@core/racing/domain/entities/Protest';
+import type { Race } from '@core/racing/domain/entities/Race';
+import { Penalty } from '@core/racing/domain/entities/penalty/Penalty';
+
+type StewardingSeed = {
+  protests: Protest[];
+  penalties: Penalty[];
+};
+
+export class RacingStewardingFactory {
+  constructor(private readonly baseDate: Date) {}
+
+  create(races: Race[], drivers: Driver[], leagueMemberships: LeagueMembership[]): StewardingSeed {
+    const protests: Protest[] = [];
+    const penalties: Penalty[] = [];
+
+    const driversById = new Map<string, Driver>(drivers.map((d) => [d.id.toString(), d]));
+    const activeMembersByLeague = new Map<string, string[]>();
+
+    for (const membership of leagueMemberships) {
+      if (membership.status.toString() !== 'active') continue;
+      const leagueId = membership.leagueId.toString();
+      const driverId = membership.driverId.toString();
+      if (!driversById.has(driverId)) continue;
+
+      const list = activeMembersByLeague.get(leagueId) ?? [];
+      list.push(driverId);
+      activeMembersByLeague.set(leagueId, list);
+    }
+
+    const racesByLeague = new Map<string, Race[]>();
+    for (const race of races) {
+      const leagueId = race.leagueId.toString();
+      const list = racesByLeague.get(leagueId) ?? [];
+      list.push(race);
+      racesByLeague.set(leagueId, list);
+    }
+
+    // Make league-5 the "busy demo league" for stewarding UIs:
+    // - at least one pending/under_review protest
+    // - some resolved protests
+    // - penalties with and without protest linkage
+    const demoLeagueRaces = (racesByLeague.get('league-5') ?? []).slice().sort((a, b) => a.scheduledAt.getTime() - b.scheduledAt.getTime());
+    const demoMembers = activeMembersByLeague.get('league-5') ?? [];
+
+    if (demoLeagueRaces.length > 0 && demoMembers.length >= 4) {
+      const [firstRace, secondRace, thirdRace] = demoLeagueRaces;
+
+      const protester = demoMembers[0]!;
+      const accused = demoMembers[1]!;
+      const steward = demoMembers[2]!;
+      const spare = demoMembers[3]!;
+
+      if (firstRace) {
+        protests.push(
+          Protest.create({
+            id: 'protest-1',
+            raceId: firstRace.id.toString(),
+            protestingDriverId: protester,
+            accusedDriverId: accused,
+            incident: {
+              lap: 1,
+              description: 'Avoidable contact into Turn 1 causing a spin and damage.',
+              timeInRace: 85,
+            },
+            comment: 'I left a car width but got punted. Please review the onboard and external.',
+            proofVideoUrl: 'https://example.com/videos/protest-1',
+            status: 'pending',
+            filedAt: faker.date.recent({ days: 6, refDate: this.baseDate }),
+          }),
+        );
+
+        // No penalty yet (pending), but seed a direct steward warning on same race.
+        penalties.push(
+          Penalty.create({
+            id: 'penalty-1',
+            leagueId: 'league-5',
+            raceId: firstRace.id.toString(),
+            driverId: accused,
+            type: 'warning',
+            reason: 'Repeated track limits warnings (race director note).',
+            issuedBy: steward,
+            status: 'applied',
+            issuedAt: faker.date.recent({ days: 5, refDate: this.baseDate }),
+            appliedAt: faker.date.recent({ days: 5, refDate: this.baseDate }),
+            notes: 'Keep it within track limits; further offenses will escalate.',
+          }),
+        );
+      }
+
+      if (secondRace) {
+        protests.push(
+          Protest.create({
+            id: 'protest-2',
+            raceId: secondRace.id.toString(),
+            protestingDriverId: spare,
+            accusedDriverId: accused,
+            incident: {
+              lap: 7,
+              description: 'Unsafe rejoin after off-track caused a collision with following traffic.',
+              timeInRace: 610,
+            },
+            proofVideoUrl: 'https://example.com/videos/protest-2',
+            status: 'under_review',
+            reviewedBy: steward,
+            filedAt: faker.date.recent({ days: 12, refDate: this.baseDate }),
+          }),
+        );
+
+        // Under review penalty still pending (linked to protest)
+        penalties.push(
+          Penalty.create({
+            id: 'penalty-2',
+            leagueId: 'league-5',
+            raceId: secondRace.id.toString(),
+            driverId: accused,
+            type: 'time_penalty',
+            value: 10,
+            reason: 'Unsafe rejoin (protest pending review)',
+            protestId: 'protest-2',
+            issuedBy: steward,
+            status: 'pending',
+            issuedAt: faker.date.recent({ days: 10, refDate: this.baseDate }),
+            notes: 'Will be applied to results if upheld.',
+          }),
+        );
+      }
+
+      if (thirdRace) {
+        const upheld = Protest.create({
+          id: 'protest-3',
+          raceId: thirdRace.id.toString(),
+          protestingDriverId: protester,
+          accusedDriverId: spare,
+          incident: {
+            lap: 12,
+            description: 'Brake check on the straight leading to rear-end contact.',
+            timeInRace: 1280,
+          },
+          status: 'upheld',
+          reviewedBy: steward,
+          decisionNotes: 'Brake check is not acceptable. Penalty applied.',
+          reviewedAt: faker.date.recent({ days: 20, refDate: this.baseDate }),
+          filedAt: faker.date.recent({ days: 25, refDate: this.baseDate }),
+        });
+
+        protests.push(upheld);
+
+        penalties.push(
+          Penalty.create({
+            id: 'penalty-3',
+            leagueId: 'league-5',
+            raceId: thirdRace.id.toString(),
+            driverId: spare,
+            type: 'points_deduction',
+            value: 5,
+            reason: upheld.incident.description.toString(),
+            protestId: upheld.id,
+            issuedBy: steward,
+            status: 'applied',
+            issuedAt: faker.date.recent({ days: 20, refDate: this.baseDate }),
+            appliedAt: faker.date.recent({ days: 19, refDate: this.baseDate }),
+            notes: 'Applied after stewarding decision.',
+          }),
+        );
+
+        const dismissed = Protest.create({
+          id: 'protest-4',
+          raceId: thirdRace.id.toString(),
+          protestingDriverId: accused,
+          accusedDriverId: protester,
+          incident: {
+            lap: 3,
+            description: 'Minor side-by-side contact with no loss of control.',
+            timeInRace: 240,
+          },
+          status: 'dismissed',
+          reviewedBy: steward,
+          decisionNotes: 'Racing incident, no further action.',
+          reviewedAt: faker.date.recent({ days: 18, refDate: this.baseDate }),
+          filedAt: faker.date.recent({ days: 22, refDate: this.baseDate }),
+        });
+
+        protests.push(dismissed);
+      }
+    }
+
+    // Fill other leagues lightly with variety (including awaiting_defense and withdrawn).
+    for (const [leagueId, leagueRaces] of racesByLeague.entries()) {
+      if (leagueId === 'league-5') continue;
+      const members = activeMembersByLeague.get(leagueId) ?? [];
+      if (members.length < 3) continue;
+
+      const completedRaces = leagueRaces.filter((r) => r.status.toString() === 'completed').slice(0, 2);
+      if (completedRaces.length === 0) continue;
+
+      const [race] = completedRaces;
+      if (!race) continue;
+
+      const a = members[0]!;
+      const b = members[1]!;
+      const steward = members[2]!;
+
+      const seedOne = faker.number.int({ min: 0, max: 2 }) === 0;
+      if (!seedOne) continue;
+
+      const status = faker.helpers.arrayElement(['awaiting_defense', 'withdrawn'] as const);
+
+      const protest = Protest.create({
+        id: `protest-${leagueId}-${race.id.toString()}`,
+        raceId: race.id.toString(),
+        protestingDriverId: a,
+        accusedDriverId: b,
+        incident: {
+          lap: faker.number.int({ min: 1, max: 20 }),
+          description: faker.helpers.arrayElement([
+            'Divebomb attempt from too far back caused avoidable contact.',
+            'Blocking under braking and changing line multiple times.',
+            'Track limits abuse provided a sustained advantage.',
+            'Blue flag was ignored causing unnecessary time loss.',
+          ]),
+        },
+        status,
+        ...(status === 'awaiting_defense'
+          ? {
+              defenseRequestedBy: steward,
+              defenseRequestedAt: faker.date.recent({ days: 3, refDate: this.baseDate }),
+            }
+          : {}),
+        filedAt: faker.date.recent({ days: 14, refDate: this.baseDate }),
+      });
+
+      protests.push(protest);
+
+      if (status === 'withdrawn') {
+        // A non-protest-linked penalty can still exist for the same race.
+        penalties.push(
+          Penalty.create({
+            id: `penalty-${leagueId}-${race.id.toString()}`,
+            leagueId,
+            raceId: race.id.toString(),
+            driverId: b,
+            type: faker.helpers.arrayElement(['grid_penalty', 'license_points'] as const),
+            value: faker.number.int({ min: 2, max: 5 }),
+            reason: 'Steward discretion: repeated behavior across sessions.',
+            issuedBy: steward,
+            status: 'applied',
+            issuedAt: faker.date.recent({ days: 9, refDate: this.baseDate }),
+            appliedAt: faker.date.recent({ days: 9, refDate: this.baseDate }),
+          }),
+        );
+      }
+    }
+
+    return { protests, penalties };
+  }
+}
\ No newline at end of file
diff --git a/adapters/bootstrap/racing/RacingTeamFactory.ts b/adapters/bootstrap/racing/RacingTeamFactory.ts
index 34031e29b..01ea381f8 100644
--- a/adapters/bootstrap/racing/RacingTeamFactory.ts
+++ b/adapters/bootstrap/racing/RacingTeamFactory.ts
@@ -1,25 +1,21 @@
 import { Driver } from '@core/racing/domain/entities/Driver';
 import { League } from '@core/racing/domain/entities/League';
 import { Team } from '@core/racing/domain/entities/Team';
-import type { TeamMembership } from '@core/racing/domain/types/TeamMembership';
+import type { TeamJoinRequest, TeamMembership } from '@core/racing/domain/types/TeamMembership';
 import { faker } from '@faker-js/faker';
 
 export class RacingTeamFactory {
-  constructor(
-    private readonly baseDate: Date,
-    private readonly drivers: Driver[],
-    private readonly leagues: League[],
-  ) {}
+  constructor(private readonly baseDate: Date) {}
 
-  createTeams(): Team[] {
+  createTeams(drivers: Driver[], leagues: League[]): Team[] {
     const teamCount = 15;
 
     return Array.from({ length: teamCount }, (_, idx) => {
       const i = idx + 1;
-      const owner = faker.helpers.arrayElement(this.drivers);
+      const owner = faker.helpers.arrayElement(drivers);
       const teamLeagues = faker.helpers.arrayElements(
-        this.leagues.map(l => l.id.toString()),
-        { min: 0, max: 3 }
+        leagues.map((l) => l.id.toString()),
+        { min: 0, max: 3 },
       );
 
       return Team.create({
@@ -111,4 +107,74 @@ export class RacingTeamFactory {
     return memberships;
   }
 
+  createTeamJoinRequests(
+    drivers: Driver[],
+    teams: Team[],
+    teamMemberships: TeamMembership[],
+  ): TeamJoinRequest[] {
+    const membershipIds = new Set<string>(teamMemberships.map(m => `${m.teamId}:${m.driverId}`));
+    const requests: TeamJoinRequest[] = [];
+
+    const addRequest = (request: TeamJoinRequest): void => {
+      requests.push(request);
+    };
+
+    const team1 = teams[0];
+    if (team1) {
+      const candidateDriverIds = drivers
+        .map(d => d.id.toString())
+        .filter(driverId => !membershipIds.has(`${team1.id.toString()}:${driverId}`))
+        .slice(0, 8);
+
+      candidateDriverIds.forEach((driverId, idx) => {
+        addRequest({
+          id: `team-join-${team1.id.toString()}-${driverId}`,
+          teamId: team1.id.toString(),
+          driverId,
+          requestedAt: this.addDays(this.baseDate, -(5 + idx)),
+          ...(idx % 3 === 0
+            ? { message: 'Can I join as a substitute driver for endurance events?' }
+            : idx % 3 === 2
+              ? { message: '' }
+              : {}),
+        });
+      });
+
+      // Conflict edge case: owner submits a join request to own team.
+      addRequest({
+        id: `team-join-${team1.id.toString()}-${team1.ownerId.toString()}-conflict`,
+        teamId: team1.id.toString(),
+        driverId: team1.ownerId.toString(),
+        requestedAt: this.addDays(this.baseDate, -1),
+        message: 'Testing edge case: owner submitted join request.',
+      });
+    }
+
+    const team3 = teams[2];
+    if (team3 && drivers[0]) {
+      const driverId = drivers[0].id.toString();
+      addRequest({
+        id: 'dup-team-join-req-1',
+        teamId: team3.id.toString(),
+        driverId,
+        requestedAt: this.addDays(this.baseDate, -10),
+        message: 'First request message (will be overwritten).',
+      });
+
+      addRequest({
+        id: 'dup-team-join-req-1',
+        teamId: team3.id.toString(),
+        driverId,
+        requestedAt: this.addDays(this.baseDate, -9),
+        message: 'Updated request message (duplicate id).',
+      });
+    }
+
+    return requests;
+  }
+
+  private addDays(date: Date, days: number): Date {
+    return new Date(date.getTime() + days * 24 * 60 * 60 * 1000);
+  }
+
 }
\ No newline at end of file
diff --git a/adapters/bootstrap/racing/RacingTrackFactory.ts b/adapters/bootstrap/racing/RacingTrackFactory.ts
index 3c0061c96..5db3e7147 100644
--- a/adapters/bootstrap/racing/RacingTrackFactory.ts
+++ b/adapters/bootstrap/racing/RacingTrackFactory.ts
@@ -2,6 +2,10 @@ import { Track } from '@core/racing/domain/entities/Track';
 
 export class RacingTrackFactory {
   create(): Track[] {
+    // Only a subset of track images exist locally in `apps/website/public/images/tracks`.
+    // Use a real local image for a few, and a stable local placeholder for the rest.
+    const placeholderImageUrl = '/images/leagues/placeholder-cover.svg';
+
     return [
       // Road tracks - various difficulties
       Track.create({
@@ -25,7 +29,7 @@ export class RacingTrackFactory {
         difficulty: 'intermediate',
         lengthKm: 5.793,
         turns: 11,
-        imageUrl: '/images/tracks/monza.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -37,7 +41,7 @@ export class RacingTrackFactory {
         difficulty: 'advanced',
         lengthKm: 5.148,
         turns: 15,
-        imageUrl: '/images/tracks/nurburgring.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -49,7 +53,7 @@ export class RacingTrackFactory {
         difficulty: 'intermediate',
         lengthKm: 5.891,
         turns: 18,
-        imageUrl: '/images/tracks/silverstone.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -61,7 +65,7 @@ export class RacingTrackFactory {
         difficulty: 'expert',
         lengthKm: 5.807,
         turns: 18,
-        imageUrl: '/images/tracks/suzuka.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -73,7 +77,7 @@ export class RacingTrackFactory {
         difficulty: 'advanced',
         lengthKm: 3.602,
         turns: 11,
-        imageUrl: '/images/tracks/laguna.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -85,7 +89,7 @@ export class RacingTrackFactory {
         difficulty: 'intermediate',
         lengthKm: 4.259,
         turns: 14,
-        imageUrl: '/images/tracks/zandvoort.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -97,7 +101,7 @@ export class RacingTrackFactory {
         difficulty: 'advanced',
         lengthKm: 4.909,
         turns: 19,
-        imageUrl: '/images/tracks/imola.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -109,7 +113,7 @@ export class RacingTrackFactory {
         difficulty: 'expert',
         lengthKm: 13.626,
         turns: 38,
-        imageUrl: '/images/tracks/le-mans.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -121,7 +125,7 @@ export class RacingTrackFactory {
         difficulty: 'intermediate',
         lengthKm: 4.574,
         turns: 17,
-        imageUrl: '/images/tracks/hockenheim.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       // Oval tracks
@@ -146,7 +150,7 @@ export class RacingTrackFactory {
         difficulty: 'advanced',
         lengthKm: 4.192,
         turns: 4,
-        imageUrl: '/images/tracks/indianapolis.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -158,7 +162,7 @@ export class RacingTrackFactory {
         difficulty: 'beginner',
         lengthKm: 4.280,
         turns: 4,
-        imageUrl: '/images/tracks/talladega.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       // Street tracks
@@ -171,7 +175,7 @@ export class RacingTrackFactory {
         difficulty: 'intermediate',
         lengthKm: 5.410,
         turns: 19,
-        imageUrl: '/images/tracks/miami.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       Track.create({
@@ -183,7 +187,7 @@ export class RacingTrackFactory {
         difficulty: 'advanced',
         lengthKm: 6.201,
         turns: 17,
-        imageUrl: '/images/tracks/las-vegas.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
       // Dirt tracks
@@ -196,7 +200,7 @@ export class RacingTrackFactory {
         difficulty: 'beginner',
         lengthKm: 0.805,
         turns: 4,
-        imageUrl: '/images/tracks/eldora.jpg',
+        imageUrl: placeholderImageUrl,
         gameId: 'iracing',
       }),
     ];
diff --git a/adapters/media/ports/InMemoryImageServiceAdapter.test.ts b/adapters/media/ports/InMemoryImageServiceAdapter.test.ts
index 364bd72aa..f6936ebcf 100644
--- a/adapters/media/ports/InMemoryImageServiceAdapter.test.ts
+++ b/adapters/media/ports/InMemoryImageServiceAdapter.test.ts
@@ -13,9 +13,9 @@ describe('InMemoryImageServiceAdapter', () => {
 
     const adapter = new InMemoryImageServiceAdapter(logger);
 
-    expect(adapter.getDriverAvatar('driver-1')).toContain('/avatars/driver-1.png');
-    expect(adapter.getTeamLogo('team-1')).toContain('/logos/team-team-1.png');
-    expect(adapter.getLeagueCover('league-1')).toContain('/covers/league-league-1.png');
-    expect(adapter.getLeagueLogo('league-1')).toContain('/logos/league-league-1.png');
+    expect(adapter.getDriverAvatar('driver-1')).toContain('/images/avatars/');
+    expect(adapter.getTeamLogo('team-1')).toBe('/images/ff1600.jpeg');
+    expect(adapter.getLeagueCover('league-1')).toBe('/images/header.jpeg');
+    expect(adapter.getLeagueLogo('league-1')).toBe('/images/ff1600.jpeg');
   });
 });
diff --git a/adapters/media/ports/InMemoryImageServiceAdapter.ts b/adapters/media/ports/InMemoryImageServiceAdapter.ts
index 6234d68e8..40e03aec9 100644
--- a/adapters/media/ports/InMemoryImageServiceAdapter.ts
+++ b/adapters/media/ports/InMemoryImageServiceAdapter.ts
@@ -8,21 +8,30 @@ export class InMemoryImageServiceAdapter implements IImageServicePort {
 
   getDriverAvatar(driverId: string): string {
     this.logger.debug(`[InMemoryImageServiceAdapter] Getting avatar for driver: ${driverId}`);
-    return `https://cdn.example.com/avatars/${driverId}.png`; // Mock URL
+    const driverNumber = Number(driverId.replace('driver-', ''));
+    const index = Number.isFinite(driverNumber) ? driverNumber % 3 : 0;
+
+    const avatars = [
+      '/images/avatars/male-default-avatar.jpg',
+      '/images/avatars/female-default-avatar.jpeg',
+      '/images/avatars/neutral-default-avatar.jpeg',
+    ] as const;
+
+    return avatars[index] ?? avatars[0];
   }
 
   getTeamLogo(teamId: string): string {
     this.logger.debug(`[InMemoryImageServiceAdapter] Getting logo for team: ${teamId}`);
-    return `https://cdn.example.com/logos/team-${teamId}.png`; // Mock URL
+    return '/images/ff1600.jpeg';
   }
 
   getLeagueCover(leagueId: string): string {
     this.logger.debug(`[InMemoryImageServiceAdapter] Getting cover for league: ${leagueId}`);
-    return `https://cdn.example.com/covers/league-${leagueId}.png`; // Mock URL
+    return '/images/header.jpeg';
   }
 
   getLeagueLogo(leagueId: string): string {
     this.logger.debug(`[InMemoryImageServiceAdapter] Getting logo for league: ${leagueId}`);
-    return `https://cdn.example.com/logos/league-${leagueId}.png`; // Mock URL
+    return '/images/ff1600.jpeg';
   }
 }
diff --git a/apps/api/src/domain/bootstrap/BootstrapProviders.ts b/apps/api/src/domain/bootstrap/BootstrapProviders.ts
index ea667a5a0..cc022d9df 100644
--- a/apps/api/src/domain/bootstrap/BootstrapProviders.ts
+++ b/apps/api/src/domain/bootstrap/BootstrapProviders.ts
@@ -46,6 +46,13 @@ export const BootstrapProviders: Provider[] = [
     useFactory: (
       driverRepository: RacingSeedDependencies['driverRepository'],
       leagueRepository: RacingSeedDependencies['leagueRepository'],
+      seasonRepository: RacingSeedDependencies['seasonRepository'],
+      seasonSponsorshipRepository: RacingSeedDependencies['seasonSponsorshipRepository'],
+      sponsorshipRequestRepository: RacingSeedDependencies['sponsorshipRequestRepository'],
+      leagueWalletRepository: RacingSeedDependencies['leagueWalletRepository'],
+      transactionRepository: RacingSeedDependencies['transactionRepository'],
+      protestRepository: RacingSeedDependencies['protestRepository'],
+      penaltyRepository: RacingSeedDependencies['penaltyRepository'],
       raceRepository: RacingSeedDependencies['raceRepository'],
       resultRepository: RacingSeedDependencies['resultRepository'],
       standingRepository: RacingSeedDependencies['standingRepository'],
@@ -53,11 +60,19 @@ export const BootstrapProviders: Provider[] = [
       raceRegistrationRepository: RacingSeedDependencies['raceRegistrationRepository'],
       teamRepository: RacingSeedDependencies['teamRepository'],
       teamMembershipRepository: RacingSeedDependencies['teamMembershipRepository'],
+      sponsorRepository: RacingSeedDependencies['sponsorRepository'],
       feedRepository: RacingSeedDependencies['feedRepository'],
       socialGraphRepository: RacingSeedDependencies['socialGraphRepository'],
     ): RacingSeedDependencies => ({
       driverRepository,
       leagueRepository,
+      seasonRepository,
+      seasonSponsorshipRepository,
+      sponsorshipRequestRepository,
+      leagueWalletRepository,
+      transactionRepository,
+      protestRepository,
+      penaltyRepository,
       raceRepository,
       resultRepository,
       standingRepository,
@@ -65,12 +80,20 @@ export const BootstrapProviders: Provider[] = [
       raceRegistrationRepository,
       teamRepository,
       teamMembershipRepository,
+      sponsorRepository,
       feedRepository,
       socialGraphRepository,
     }),
     inject: [
       'IDriverRepository',
       'ILeagueRepository',
+      'ISeasonRepository',
+      'ISeasonSponsorshipRepository',
+      'ISponsorshipRequestRepository',
+      'ILeagueWalletRepository',
+      'ITransactionRepository',
+      'IProtestRepository',
+      'IPenaltyRepository',
       'IRaceRepository',
       'IResultRepository',
       'IStandingRepository',
@@ -78,6 +101,7 @@ export const BootstrapProviders: Provider[] = [
       'IRaceRegistrationRepository',
       'ITeamRepository',
       'ITeamMembershipRepository',
+      'ISponsorRepository',
       'IFeedRepository',
       'ISocialGraphRepository',
     ],
diff --git a/apps/api/src/domain/bootstrap/RacingSeed.test.ts b/apps/api/src/domain/bootstrap/RacingSeed.test.ts
new file mode 100644
index 000000000..4a52fa62b
--- /dev/null
+++ b/apps/api/src/domain/bootstrap/RacingSeed.test.ts
@@ -0,0 +1,224 @@
+import { describe, expect, it } from 'vitest';
+import { createRacingSeed } from '@adapters/bootstrap/racing/RacingSeed';
+
+describe('Racing seed (bootstrap)', () => {
+  it('creates a large, internally consistent seed', () => {
+    const seed = createRacingSeed();
+
+    expect(seed.drivers.length).toBeGreaterThanOrEqual(50);
+    expect(seed.leagues.length).toBeGreaterThanOrEqual(10);
+    expect(seed.races.length).toBeGreaterThan(0);
+
+    const driverIds = new Set(seed.drivers.map((d) => d.id.toString()));
+    const leagueIds = new Set(seed.leagues.map((l) => l.id.toString()));
+    const teamIds = new Set(seed.teams.map((t) => t.id.toString()));
+    const raceById = new Map(seed.races.map((r) => [r.id.toString(), r] as const));
+    const sponsorIds = new Set(seed.sponsors.map((s) => s.id.toString()));
+    const seasonById = new Map(seed.seasons.map((s) => [s.id, s] as const));
+    const walletById = new Map(seed.leagueWallets.map((w) => [w.id.toString(), w] as const));
+    const protestById = new Map(seed.protests.map((p) => [p.id, p] as const));
+
+    // Deterministic demo IDs used by the website
+    expect(seed.sponsors.some((s) => s.id.toString() === 'demo-sponsor-1')).toBe(true);
+
+    // Seasons + sponsorship ecosystem
+    expect(seed.seasons.some((s) => s.id === 'season-1')).toBe(true);
+    expect(seed.seasons.some((s) => s.id === 'season-2')).toBe(true);
+
+    // Referential integrity: seasons must reference real leagues
+    for (const season of seed.seasons) {
+      expect(leagueIds.has(season.leagueId)).toBe(true);
+    }
+
+    // Referential integrity: season sponsorships must reference real season + sponsor
+    for (const sponsorship of seed.seasonSponsorships) {
+      expect(seasonById.has(sponsorship.seasonId)).toBe(true);
+      expect(sponsorIds.has(sponsorship.sponsorId)).toBe(true);
+
+      const season = seasonById.get(sponsorship.seasonId);
+      if (season && sponsorship.leagueId !== undefined) {
+        expect(sponsorship.leagueId).toBe(season.leagueId);
+      }
+    }
+
+    // Referential integrity: sponsorship requests must reference a real sponsor and target entity
+    for (const request of seed.sponsorshipRequests) {
+      expect(sponsorIds.has(request.sponsorId)).toBe(true);
+
+      if (request.entityType === 'season') {
+        expect(seasonById.has(request.entityId)).toBe(true);
+      } else if (request.entityType === 'team') {
+        expect(teamIds.has(request.entityId)).toBe(true);
+      } else if (request.entityType === 'race') {
+        expect(raceById.has(request.entityId)).toBe(true);
+      } else if (request.entityType === 'driver') {
+        expect(driverIds.has(request.entityId)).toBe(true);
+      }
+    }
+
+    const season1PendingRequests = seed.sponsorshipRequests.filter(
+      (r) => r.entityType === 'season' && r.entityId === 'season-1' && r.status === 'pending',
+    );
+    expect(season1PendingRequests.length).toBeGreaterThan(0);
+
+    // Wallet edge cases:
+    // - some leagues have no wallet at all
+    expect(seed.leagueWallets.some((w) => w.leagueId.toString() === 'league-2')).toBe(false);
+    expect(seed.leagueWallets.some((w) => w.leagueId.toString() === 'league-7')).toBe(false);
+
+    // - some wallets have no transactions (league-3 is intentionally quiet)
+    const league3Wallet = seed.leagueWallets.find((w) => w.leagueId.toString() === 'league-3');
+    if (league3Wallet) {
+      const league3TxCount = seed.leagueWalletTransactions.filter(
+        (tx) => tx.walletId.toString() === league3Wallet.id.toString(),
+      ).length;
+      expect(league3TxCount).toBe(0);
+    }
+
+    // - demo wallet has a pending prize payout
+    const league5Wallet = seed.leagueWallets.find((w) => w.leagueId.toString() === 'league-5');
+    expect(league5Wallet).toBeDefined();
+    if (league5Wallet) {
+      const league5PendingPrizes = seed.leagueWalletTransactions.filter(
+        (tx) =>
+          tx.walletId.toString() === league5Wallet.id.toString() &&
+          tx.type === 'prize_payout' &&
+          tx.status === 'pending',
+      );
+      expect(league5PendingPrizes.length).toBeGreaterThan(0);
+    }
+
+    // Referential integrity: all transactions reference an existing wallet
+    for (const tx of seed.leagueWalletTransactions) {
+      expect(walletById.has(tx.walletId.toString())).toBe(true);
+    }
+
+    // Wallet invariant safety: no completed debit causes an overdraft when applied in factory order.
+    for (const wallet of seed.leagueWallets) {
+      const walletId = wallet.id.toString();
+      const completed = seed.leagueWalletTransactions
+        .filter((t) => t.walletId.toString() === walletId && t.status === 'completed')
+        .filter((t) => t.type !== 'prize_payout');
+
+      const sum = (values: number[]) => values.reduce((acc, v) => acc + v, 0);
+
+      const credits = completed.filter((t) => t.type === 'membership_payment' || t.type === 'sponsorship_payment');
+      const debits = completed.filter((t) => t.type === 'withdrawal' || t.type === 'refund');
+
+      const creditNet = sum(credits.map((t) => t.netAmount.amount));
+      const debitNet = sum(debits.map((t) => t.netAmount.amount));
+
+      const baseline = wallet.balance.amount - creditNet + debitNet;
+      expect(baseline).toBeGreaterThanOrEqual(0);
+
+      const parseSeq = (id: string): number | undefined => {
+        const match = id.match(/tx-league-\d+-(\d+)$/);
+        if (!match) return undefined;
+        const seq = Number(match[1]);
+        return Number.isFinite(seq) ? seq : undefined;
+      };
+
+      const inFactoryOrder = [...completed].sort((a, b) => {
+        const aSeq = parseSeq(a.id.toString());
+        const bSeq = parseSeq(b.id.toString());
+        if (aSeq !== undefined && bSeq !== undefined) return aSeq - bSeq;
+        if (aSeq !== undefined) return -1;
+        if (bSeq !== undefined) return 1;
+        return a.createdAt.getTime() - b.createdAt.getTime();
+      });
+
+      let running = baseline;
+      for (const tx of inFactoryOrder) {
+        const net = tx.netAmount.amount;
+        if (tx.type === 'withdrawal' || tx.type === 'refund') {
+          running -= net;
+          expect(running).toBeGreaterThanOrEqual(0);
+        } else {
+          running += net;
+        }
+      }
+
+      expect(running).toBeCloseTo(wallet.balance.amount, 6);
+    }
+
+    // Membership edge cases:
+    // - league-2 is intentionally empty
+    expect(seed.leagueMemberships.some((m) => m.leagueId.toString() === 'league-2')).toBe(false);
+
+    // - league-5 is "busy" (full/overbooked mix of statuses)
+    const league5Memberships = seed.leagueMemberships.filter((m) => m.leagueId.toString() === 'league-5');
+    expect(league5Memberships.length).toBeGreaterThan(0);
+    expect(league5Memberships.some((m) => m.status.toString() === 'active')).toBe(true);
+    expect(league5Memberships.some((m) => m.status.toString() === 'pending')).toBe(true);
+
+    // Stewarding referential integrity
+    for (const protest of seed.protests) {
+      expect(raceById.has(protest.raceId)).toBe(true);
+      expect(driverIds.has(protest.protestingDriverId)).toBe(true);
+      expect(driverIds.has(protest.accusedDriverId)).toBe(true);
+
+      const race = raceById.get(protest.raceId);
+      if (race) {
+        const leagueId = race.leagueId.toString();
+
+        const hasMembership = (driverId: string) =>
+          seed.leagueMemberships.some(
+            (m) => m.leagueId.toString() === leagueId && m.driverId.toString() === driverId,
+          );
+
+        expect(hasMembership(protest.protestingDriverId)).toBe(true);
+        expect(hasMembership(protest.accusedDriverId)).toBe(true);
+      }
+    }
+
+    for (const penalty of seed.penalties) {
+      expect(raceById.has(penalty.raceId)).toBe(true);
+      expect(driverIds.has(penalty.driverId)).toBe(true);
+
+      const race = raceById.get(penalty.raceId);
+      if (race) {
+        expect(penalty.leagueId).toBe(race.leagueId.toString());
+      }
+
+      if (penalty.protestId !== undefined) {
+        expect(protestById.has(penalty.protestId)).toBe(true);
+        const protest = protestById.get(penalty.protestId);
+        if (protest) {
+          expect(penalty.raceId).toBe(protest.raceId);
+        }
+      }
+    }
+
+    // Stewarding edge cases: demo league has multiple protest statuses
+    const protestStatusesLeague5 = new Set(
+      seed.protests
+        .filter((p) =>
+          seed.races.some((r) => r.id.toString() === p.raceId && r.leagueId.toString() === 'league-5'),
+        )
+        .map((p) => p.status.toString()),
+    );
+    expect(protestStatusesLeague5.has('pending')).toBe(true);
+    expect(protestStatusesLeague5.has('under_review') || protestStatusesLeague5.has('upheld')).toBe(true);
+
+    // Penalties should include at least one linked to a protest
+    expect(seed.penalties.some((p) => (p as unknown as { protestId?: string }).protestId)).toBe(true);
+
+    // Basic ID sanity (no duplicates per collection)
+    const assertNoDuplicateIds = (ids: string[]) => {
+      const unique = new Set(ids);
+      expect(unique.size).toBe(ids.length);
+    };
+
+    assertNoDuplicateIds(seed.drivers.map((d) => d.id.toString()));
+    assertNoDuplicateIds(seed.leagues.map((l) => l.id.toString()));
+    assertNoDuplicateIds(seed.teams.map((t) => t.id.toString()));
+    assertNoDuplicateIds(seed.sponsors.map((s) => s.id.toString()));
+    assertNoDuplicateIds(seed.seasons.map((s) => s.id));
+    assertNoDuplicateIds(seed.seasonSponsorships.map((s) => s.id));
+    assertNoDuplicateIds(seed.sponsorshipRequests.map((r) => r.id));
+    assertNoDuplicateIds(seed.protests.map((p) => p.id));
+    assertNoDuplicateIds(seed.penalties.map((p) => p.id));
+    assertNoDuplicateIds(seed.leagueWallets.map((w) => w.id.toString()));
+    assertNoDuplicateIds(seed.leagueWalletTransactions.map((t) => t.id.toString()));
+  });
+});
\ No newline at end of file
diff --git a/apps/api/src/domain/driver/DriverService.test.ts b/apps/api/src/domain/driver/DriverService.test.ts
index a42f741a5..a54ed5e60 100644
--- a/apps/api/src/domain/driver/DriverService.test.ts
+++ b/apps/api/src/domain/driver/DriverService.test.ts
@@ -1,11 +1,12 @@
 import { describe, expect, it, vi } from 'vitest';
+import { Result } from '@core/shared/application/Result';
 import { DriverService } from './DriverService';
 
 describe('DriverService', () => {
   const logger = { debug: vi.fn(), info: vi.fn(), warn: vi.fn(), error: vi.fn() };
 
   it('getDriversLeaderboard executes use case and returns presenter model', async () => {
-    const getDriversLeaderboardUseCase = { execute: vi.fn(async () => {}) };
+    const getDriversLeaderboardUseCase = { execute: vi.fn(async () => Result.ok(undefined)) };
     const driversLeaderboardPresenter = { getResponseModel: vi.fn(() => ({ items: [] })) };
 
     const service = new DriverService(
@@ -31,7 +32,7 @@ describe('DriverService', () => {
   });
 
   it('getTotalDrivers executes use case and returns presenter model', async () => {
-    const getTotalDriversUseCase = { execute: vi.fn(async () => {}) };
+    const getTotalDriversUseCase = { execute: vi.fn(async () => Result.ok(undefined)) };
     const driverStatsPresenter = { getResponseModel: vi.fn(() => ({ totalDrivers: 123 })) };
 
     const service = new DriverService(
@@ -57,7 +58,7 @@ describe('DriverService', () => {
   });
 
   it('completeOnboarding passes optional bio only when provided', async () => {
-    const completeDriverOnboardingUseCase = { execute: vi.fn(async () => {}) };
+    const completeDriverOnboardingUseCase = { execute: vi.fn(async () => Result.ok(undefined)) };
 
     const service = new DriverService(
       { execute: vi.fn() } as any,
@@ -112,7 +113,7 @@ describe('DriverService', () => {
   });
 
   it('getDriverRegistrationStatus passes raceId and driverId and returns presenter model', async () => {
-    const isDriverRegisteredForRaceUseCase = { execute: vi.fn(async () => {}) };
+    const isDriverRegisteredForRaceUseCase = { execute: vi.fn(async () => Result.ok(undefined)) };
     const driverRegistrationStatusPresenter = { getResponseModel: vi.fn(() => ({ isRegistered: true })) };
 
     const service = new DriverService(
@@ -142,7 +143,7 @@ describe('DriverService', () => {
 
   it('getCurrentDriver calls repository and returns presenter model', async () => {
     const driverRepository = { findById: vi.fn(async () => null) };
-    const driverPresenter = { getResponseModel: vi.fn(() => null) };
+    const driverPresenter = { present: vi.fn(), getResponseModel: vi.fn(() => null) };
 
     const service = new DriverService(
       { execute: vi.fn() } as any,
@@ -168,7 +169,7 @@ describe('DriverService', () => {
 
   it('updateDriverProfile builds optional input and returns presenter model', async () => {
     const updateDriverProfileUseCase = { execute: vi.fn(async () => {}) };
-    const driverPresenter = { getResponseModel: vi.fn(() => ({ driver: { id: 'd1' } })) };
+    const driverPresenter = { present: vi.fn(), getResponseModel: vi.fn(() => ({ driver: { id: 'd1' } })) };
 
     const service = new DriverService(
       { execute: vi.fn() } as any,
@@ -210,7 +211,7 @@ describe('DriverService', () => {
 
   it('getDriver calls repository and returns presenter model', async () => {
     const driverRepository = { findById: vi.fn(async () => null) };
-    const driverPresenter = { getResponseModel: vi.fn(() => ({ driver: null })) };
+    const driverPresenter = { present: vi.fn(), getResponseModel: vi.fn(() => ({ driver: null })) };
 
     const service = new DriverService(
       { execute: vi.fn() } as any,
@@ -235,7 +236,7 @@ describe('DriverService', () => {
   });
 
   it('getDriverProfile executes use case and returns presenter model', async () => {
-    const getProfileOverviewUseCase = { execute: vi.fn(async () => {}) };
+    const getProfileOverviewUseCase = { execute: vi.fn(async () => Result.ok(undefined)) };
     const driverProfilePresenter = { getResponseModel: vi.fn(() => ({ profile: { id: 'd1' } })) };
 
     const service = new DriverService(
diff --git a/core/racing/domain/entities/sponsor/Sponsor.ts b/core/racing/domain/entities/sponsor/Sponsor.ts
index 6f48167fd..d5c2ac611 100644
--- a/core/racing/domain/entities/sponsor/Sponsor.ts
+++ b/core/racing/domain/entities/sponsor/Sponsor.ts
@@ -5,11 +5,13 @@
  * Aggregate root for sponsor information.
  */
 import type { IEntity } from '@core/shared/domain';
+import { SponsorCreatedAt } from './SponsorCreatedAt';
+import { SponsorEmail } from './SponsorEmail';
 import { SponsorId } from './SponsorId';
 import { SponsorName } from './SponsorName';
-import { SponsorEmail } from './SponsorEmail';
 import { Url } from './Url';
-import { SponsorCreatedAt } from './SponsorCreatedAt';
+
+// TODO sponsor is not actually the racing domain in my opinion
 
 export class Sponsor implements IEntity<SponsorId> {
   readonly id: SponsorId;