diff --git a/src/client/graphics/layers/EventsDisplay.ts b/src/client/graphics/layers/EventsDisplay.ts
index 1d39d7af9..f36de2c5e 100644
--- a/src/client/graphics/layers/EventsDisplay.ts
+++ b/src/client/graphics/layers/EventsDisplay.ts
@@ -626,6 +626,8 @@ export class EventsDisplay extends LitElement implements Layer {
   }
 
   private onAllianceExtensionEvent(update: AllianceExtensionUpdate) {
+    const myPlayer = this.game.myPlayer();
+    if (!myPlayer || myPlayer.smallID() !== update.playerID) return;
     this.removeAllianceRenewalEvents(update.allianceID);
     this.requestUpdate();
   }
diff --git a/tests/client/graphics/layers/EventDisplayAlliance.test.ts b/tests/client/graphics/layers/EventDisplayAlliance.test.ts
index 7eccc0136..82f4945eb 100644
--- a/tests/client/graphics/layers/EventDisplayAlliance.test.ts
+++ b/tests/client/graphics/layers/EventDisplayAlliance.test.ts
@@ -1,3 +1,5 @@
+import { GameUpdateType } from "../../../../src/core/game/GameUpdates";
+
 vi.mock("lit", () => ({
   html: () => {},
   LitElement: class {},
@@ -102,6 +104,72 @@ describe("EventsDisplay - alliance renewal cleanup (allianceID based)", () => {
     expect(remaining[0].allianceID).toBe(allianceCD);
   });
 
+  test("onAllianceExtensionEvent removes renewal when playerID matches myPlayer", () => {
+    const display = new EventsDisplay();
+
+    const allianceID = 42;
+    const mySmallID = 7;
+
+    (display as any).game = {
+      myPlayer: () => ({ smallID: () => mySmallID }),
+    };
+    (display as any).requestUpdate = () => {};
+    (display as any).events = [makeRenewal(allianceID, mySmallID)];
+
+    (display as any).onAllianceExtensionEvent({
+      type: GameUpdateType.AllianceExtension,
+      playerID: mySmallID,
+      allianceID,
+    });
+
+    const remaining = (display as any).events;
+    expect(remaining.some((e: any) => e.allianceID === allianceID)).toBe(false);
+  });
+
+  test("onAllianceExtensionEvent keeps renewal when playerID does not match myPlayer", () => {
+    const display = new EventsDisplay();
+
+    const allianceID = 42;
+    const mySmallID = 7;
+    const otherSmallID = 9;
+
+    (display as any).game = {
+      myPlayer: () => ({ smallID: () => mySmallID }),
+    };
+    (display as any).requestUpdate = () => {};
+    (display as any).events = [makeRenewal(allianceID, mySmallID)];
+
+    (display as any).onAllianceExtensionEvent({
+      type: "AllianceExtension",
+      playerID: otherSmallID,
+      allianceID,
+    });
+
+    const remaining = (display as any).events;
+    expect(remaining.some((e: any) => e.allianceID === allianceID)).toBe(true);
+  });
+
+  test("onAllianceExtensionEvent keeps renewal when myPlayer is null", () => {
+    const display = new EventsDisplay();
+
+    const allianceID = 42;
+
+    (display as any).game = {
+      myPlayer: () => null,
+    };
+    (display as any).requestUpdate = () => {};
+    (display as any).events = [makeRenewal(allianceID, 1)];
+
+    (display as any).onAllianceExtensionEvent({
+      type: "AllianceExtension",
+      playerID: 1,
+      allianceID,
+    });
+
+    const remaining = (display as any).events;
+    expect(remaining.some((e: any) => e.allianceID === allianceID)).toBe(true);
+  });
+
   test("does not affect non-RENEW_ALLIANCE events", () => {
     const display = new EventsDisplay();