diff --git a/ui/src/main/java/org/adoptopenjdk/jitwatch/sandbox/Sandbox.java b/ui/src/main/java/org/adoptopenjdk/jitwatch/sandbox/Sandbox.java
index 20461c8d..60005828 100644
--- a/ui/src/main/java/org/adoptopenjdk/jitwatch/sandbox/Sandbox.java
+++ b/ui/src/main/java/org/adoptopenjdk/jitwatch/sandbox/Sandbox.java
@@ -197,9 +197,13 @@ public void runSandbox(String language, List<File> compileList, File fileToRun)
 
 			lastProcess = runtime;
 
+			long start = System.currentTimeMillis();
+
 			boolean executionSuccess = executeClass(fqClassNameToRun, runtime, logParser.getConfig().isSandboxIntelMode());
 
-			logListener.handleLogEntry("Execution success: " + executionSuccess);
+			long stop = System.currentTimeMillis();
+
+			logListener.handleLogEntry("Execution success: " + executionSuccess + " in " + (stop - start) + "ms");
 
 			if (executionSuccess)
 			{