F1 Reaction Test

Lights out reaction time test: wait for five red lights, then react

Test your F1 reaction time for free. Five red lights come on one by one, then go out after a random pause. Tap or press Space the instant they go out; press too early and it is a jump start. Your time is shown in seconds and compared with the 0.2 to 0.3 seconds F1 teams quote for a race start.

Tap to start

Or press Space. React when all five lights go out.

🎯 How to Play

The test copies the start of a Grand Prix: five red lights, a pause you cannot predict, then lights out.

  • Tap the board or press Space to start. The five pairs of red lights come on one at a time, one second apart.
  • Keep still while all five are lit. They go out after a random pause of 0.2 to 3 seconds.
  • The moment the lights go out, tap or press Space. Your reaction time appears in seconds.
  • Pressing while the lights are on, or within 0.1 seconds of lights out, is a jump start and does not count.

Leaderboard

Ranked by the average of five clean starts in a row. A jump start begins a new set, so guessing the lights does not pay.

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Cognitive Benefits

Reaction Speed

Measure how quickly you respond to a single visual signal, down to the millisecond.

Impulse Control

The random pause punishes guessing. Waiting for the real signal trains you not to jump early.

Consistency

Your last five attempts and their average show whether you are fast every time or only once.

The Science Behind the Game

How fast do F1 drivers react?

At a Grand Prix start, five pairs of red lights come on one at a time, about a second apart. After a pause the drivers cannot predict, they all go out and the race begins. McLaren puts a typical start reaction at 0.2 to 0.3 seconds from lights out. One of the most talked-about starts is Valtteri Bottas at the 2017 Austrian Grand Prix, reported at 0.201 seconds; rivals questioned it as a possible jump start, but the FIA's start system judged it legal. Drivers react to a signal they have practised thousands of times, in a car built for it. Your screen, browser and mouse or keyboard add delay of their own, so compare your times with your own earlier attempts rather than expecting to match a driver.

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