diff --git a/packages/core/src/store/retrySubstore.ts b/packages/core/src/store/retrySubstore.ts
index d865a08a14f..e69a52fe5a3 100644
--- a/packages/core/src/store/retrySubstore.ts
+++ b/packages/core/src/store/retrySubstore.ts
@@ -99,7 +99,14 @@ export class RetrySubstore {
       return;
     }
 
-    results.push(testResult);
+    const existingIndex = results.findIndex((attempt) => attempt.id === testResult.id);
+
+    if (existingIndex !== -1) {
+      results.splice(existingIndex, 1, testResult);
+    } else {
+      results.push(testResult);
+    }
+
     results.sort((first, second) => this.#compareResults(first, second));
 
     results.forEach((attempt, index) => {
diff --git a/packages/core/test/store/retrySubstore.test.ts b/packages/core/test/store/retrySubstore.test.ts
index dc5ab41cd73..6d6457c1e5f 100644
--- a/packages/core/test/store/retrySubstore.test.ts
+++ b/packages/core/test/store/retrySubstore.test.ts
@@ -253,6 +253,20 @@ describe("RetrySubstore", () => {
       expect(other.isRetry).toBe(true);
     });
 
+    it("does not return a duplicate retry when the same id is upserted again", () => {
+      const rs = new RetrySubstore();
+      const first = { ...makeTr("same"), start: 100 };
+      const other = { ...makeTr("other"), start: 200 };
+
+      upsertInOrder(rs, first, other);
+
+      const updated = { ...first, start: 500 };
+
+      rs.upsert(updated);
+
+      expect(rs.retriesByTr(updated).map(({ id }) => id)).toEqual(["other"]);
+    });
+
     it("does not index attempts without retryHash", () => {
       const rs = new RetrySubstore();
       const tr = { ...makeTr("solo"), retryHash: undefined };