Reaction Time Test
Click the circle the instant it appears. All 5 rounds run automatically and your average determines your class. Register your result to compare with other players on the ranking.
Click the circle as fast as you can when it appears. All 5 rounds run automatically; your class is judged on the average.
🏆 Ranking TOP 20
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About the measurement
Timing uses the browser's high-resolution timer (performance.now) and records the time from the circle appearing until pointerdown in milliseconds. Display and browser latency are included, so numbers vary by setup. Clicking before the circle appears counts as a false start and automatically restarts that round.