diff --git a/app/services/simulations/__tests__/cs-major-simulator.test.ts b/app/services/simulations/__tests__/cs-major-simulator.test.ts
index fee4aae..46d3eca 100644
--- a/app/services/simulations/__tests__/cs-major-simulator.test.ts
+++ b/app/services/simulations/__tests__/cs-major-simulator.test.ts
@@ -319,16 +319,16 @@ describe("simulateChampionsStage", () => {
 
 // ─── calcStage3ExitQP ─────────────────────────────────────────────────────────
 
-describe("calcStage3ExitQP", () => {
-  function makeStage3QPConfig(): Map<number, number> {
-    // Placements 9–16 with descending QP: 9→80, 10→70, ..., 16→10
-    const config = new Map<number, number>();
-    for (let i = 9; i <= 16; i++) {
-      config.set(i, (17 - i) * 10);
-    }
-    return config;
+// Placements 9–16 with descending QP: 9→80, 10→70, ..., 16→10
+function makeStage3QPConfig(): Map<number, number> {
+  const config = new Map<number, number>();
+  for (let i = 9; i <= 16; i++) {
+    config.set(i, (17 - i) * 10);
   }
+  return config;
+}
 
+describe("calcStage3ExitQP", () => {
   it("returns empty map for empty input", () => {
     const result = calcStage3ExitQP([], new Map());
     expect(result.size).toBe(0);
@@ -376,8 +376,11 @@ describe("calcStage3ExitQP", () => {
     const config = makeStage3QPConfig();
     const result = calcStage3ExitQP(elim, config);
 
-    expect(result.get("high")!).toBeGreaterThan(result.get("mid")!);
-    expect(result.get("mid")!).toBeGreaterThan(result.get("low")!);
+    const highQP = result.get("high") ?? 0;
+    const midQP  = result.get("mid")  ?? 0;
+    const lowQP  = result.get("low")  ?? 0;
+    expect(highQP).toBeGreaterThan(midQP);
+    expect(midQP).toBeGreaterThan(lowQP);
   });
 });
 
diff --git a/app/services/simulations/cs-major-simulator.ts b/app/services/simulations/cs-major-simulator.ts
index 538a929..2213d61 100644
--- a/app/services/simulations/cs-major-simulator.ts
+++ b/app/services/simulations/cs-major-simulator.ts
@@ -736,7 +736,8 @@ export function simulateOneMajor(
   const byPlacement = new Map<number, string[]>();
   for (const [pid, placement] of champResult.placements) {
     if (!byPlacement.has(placement)) byPlacement.set(placement, []);
-    byPlacement.get(placement)!.push(pid);
+    const group = byPlacement.get(placement);
+    if (group) group.push(pid);
   }
   for (const [placement, pids] of byPlacement) {
     const slots = Array.from({ length: pids.length }, (_, i) => placement + i);