diff --git a/resources/benchmark-runner.mjs b/resources/benchmark-runner.mjs
index 6a77a1cfd..257fca726 100644
--- a/resources/benchmark-runner.mjs
+++ b/resources/benchmark-runner.mjs
@@ -332,8 +332,7 @@ export class BenchmarkRunner {
 
     async runMultipleIterations(iterationCount) {
         this._iterationCount = iterationCount;
-        if (this._client?.willStartFirstIteration)
-            await this._client.willStartFirstIteration(iterationCount);
+        await this._client?.willStartFirstIteration?.(iterationCount);
 
         try {
             await this._runMultipleIterations();
@@ -345,8 +344,7 @@ export class BenchmarkRunner {
             }
         }
 
-        if (this._client?.didFinishLastIteration)
-            await this._client.didFinishLastIteration(this._metrics);
+        await this._client?.didFinishLastIteration?.(this._metrics);
     }
 
     async _runMultipleIterations() {
@@ -380,8 +378,7 @@ export class BenchmarkRunner {
         style.top = "50%";
         style.transform = "translate(-50%, -50%)";
 
-        if (this._client?.willAddTestFrame)
-            await this._client.willAddTestFrame(frame);
+        await this._client?.willAddTestFrame?.(frame);
 
         document.body.insertBefore(frame, document.body.firstChild);
         this._frame = frame;
diff --git a/resources/suite-runner.mjs b/resources/suite-runner.mjs
index 9b0084392..899d11c59 100644
--- a/resources/suite-runner.mjs
+++ b/resources/suite-runner.mjs
@@ -83,8 +83,7 @@ export class SuiteRunner {
 
         performance.mark(suiteStartLabel);
         for (const step of this.#suite.tests) {
-            if (this.#client?.willRunTest)
-                await this.#client.willRunTest(this.#suite, step);
+            await this.#client?.willRunTest?.(this.#suite, step);
 
             const stepRunnerType = this.#suite.type ?? this.params.useAsyncSteps ? "async" : "default";
             const stepRunnerClass = STEP_RUNNER_LOOKUP[stepRunnerType];
@@ -139,8 +138,7 @@ export class SuiteRunner {
     }
 
     async _updateClient(suite = this.#suite) {
-        if (this.#client?.didFinishSuite)
-            await this.#client.didFinishSuite(suite);
+        await this.#client?.didFinishSuite?.(suite);
     }
 }