diff --git a/src/core/StatsSchemas.ts b/src/core/StatsSchemas.ts
index a911d9459..962703020 100644
--- a/src/core/StatsSchemas.ts
+++ b/src/core/StatsSchemas.ts
@@ -101,6 +101,7 @@ export const PlayerStatsSchema = z
     betrayals: BigIntStringSchema.optional(),
     killedAt: BigIntStringSchema.optional(),
     conquests: BigIntStringSchema.optional(),
+    maxTilesOwned: BigIntStringSchema.optional(),
     boats: z.partialRecord(BoatUnitSchema, AtLeastOneNumberSchema).optional(),
     bombs: z.partialRecord(BombUnitSchema, AtLeastOneNumberSchema).optional(),
     gold: AtLeastOneNumberSchema.optional(),
diff --git a/src/core/game/GameImpl.ts b/src/core/game/GameImpl.ts
index ee0a7783a..2e9b800f4 100644
--- a/src/core/game/GameImpl.ts
+++ b/src/core/game/GameImpl.ts
@@ -561,10 +561,12 @@ export class GameImpl implements Game {
       previousOwner._lastTileChange = this._ticks;
       previousOwner._tiles.delete(tile);
       previousOwner._borderTiles.delete(tile);
+      this._stats.updateMaxTiles(previousOwner);
     }
     this._map.setOwnerID(tile, owner.smallID());
     owner._tiles.add(tile);
     owner._lastTileChange = this._ticks;
+    this._stats.updateMaxTiles(owner);
     this.updateBorders(tile);
     this._map.setFallout(tile, false);
     this.addUpdate({
@@ -585,6 +587,7 @@ export class GameImpl implements Game {
     previousOwner._lastTileChange = this._ticks;
     previousOwner._tiles.delete(tile);
     previousOwner._borderTiles.delete(tile);
+    this._stats.updateMaxTiles(previousOwner);
 
     this._map.setOwnerID(tile, 0);
     this.updateBorders(tile);
diff --git a/src/core/game/Stats.ts b/src/core/game/Stats.ts
index 3dc644f2d..1a9c9bddc 100644
--- a/src/core/game/Stats.ts
+++ b/src/core/game/Stats.ts
@@ -8,6 +8,9 @@ export interface Stats {
 
   numMirvsLaunched(): bigint;
 
+  // Update max tiles tracking for a player (called when tile ownership changes)
+  updateMaxTiles(player: Player): void;
+
   // Player attacks target
   attack(
     player: Player,
diff --git a/src/core/game/StatsImpl.ts b/src/core/game/StatsImpl.ts
index b62956108..5843f5bed 100644
--- a/src/core/game/StatsImpl.ts
+++ b/src/core/game/StatsImpl.ts
@@ -41,6 +41,7 @@ function _bigint(value: BigIntLike): bigint {
 
 export class StatsImpl implements Stats {
   private readonly data: AllPlayersStats = {};
+  private readonly maxTilesTracking: Map<string, bigint> = new Map();
 
   private _numMirvLaunched: bigint = 0n;
 
@@ -58,6 +59,28 @@ export class StatsImpl implements Stats {
     return this.data;
   }
 
+  /**
+   * Update max tiles tracking for a player
+   * Called whenever player's tile count changes
+   */
+  updateMaxTiles(player: Player): void {
+    const clientID = player.clientID();
+    if (clientID === null) return;
+
+    const currentTiles = _bigint(player.numTilesOwned());
+    const maxTiles = this.maxTilesTracking.get(clientID) ?? 0n;
+
+    if (currentTiles > maxTiles) {
+      this.maxTilesTracking.set(clientID, currentTiles);
+
+      // Update the player stats
+      const p = this._makePlayerStats(player);
+      if (p !== undefined) {
+        p.maxTilesOwned = currentTiles;
+      }
+    }
+  }
+
   private _makePlayerStats(player: Player): PlayerStats {
     const clientID = player.clientID();
     if (clientID === null) return undefined;