Reaction Test
Lights Out
Five lights illuminate one by one. React the instant they all go dark. Jump the start and you'll have to go again.
Watch all five lights illuminate. The moment they go out — tap as fast as you can. Don't jump the start.
Rating Scale
Under 180ms
Elite Reflexes
180 – 250ms
F1 Driver Level
251 – 350ms
Great Reaction
Above 350ms
Keep Practicing
About this game
Test the reflex F1 drivers train for years
The five red lights go out and the race starts — your reaction time from that instant is what separates a good launch from a jumped start. This game measures exactly that: watch the lights, react the moment they go dark, and see your time in milliseconds.
The scale on the right is calibrated against real F1 driver reaction data, so a result in the 'F1 Driver Level' band isn't a participation trophy — it's genuinely competitive with what happens on the grid before lights out.