Reaction & aim
Five red lights come on, then go out: react as fast as you can without jumping the start.
Inputs Mouse Tap Space
Click to start
Wait for all five lights to go out, then click, tap or press Space.
No results yet. Your scores will show up here.
| When | Length | Hold (ms) | Score |
|---|
Most people react in about 200 to 300 ms per start. Under 200 ms is very quick, and under 180 ms is exceptional on typical hardware. Your device adds its own delay, so compare scores on the same setup.
After the fifth light there is a random pause of 0.2 to 3 seconds, so counting only leads to jump starts.
Touchscreens and mobile browsers often add more delay than a desktop mouse. Compare scores taken on the same device.
People usually react faster to a sound than to a light, so a beep would make the test easier and less like a real start.
No. It is an independent reaction test inspired by motorsport start lights and is not affiliated with or endorsed by Formula 1.