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Racing Start

Wait for five red lights to go out, then react.

Racing Start is an F1-style reaction test built around 5 red lights. Watch the five lights switch on one by one, then react the instant they all go out — just like drivers do on the starting grid. The delay before lights-out is random, so you can't anticipate it. Click before the lights go out and it's a false start. Nail your fastest launch across 5 rounds!

How to Play

  1. Five red lights turn on one at a time.
  2. After a random delay, all lights go out — click as fast as you can.
  3. Clicking before lights-out is a false start (1-second penalty)!

My Best Launch

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Try to beat your personal best!

Try another reflex test

Reaction Time Test
About This Content

Tap when all five lights go out. The game records five start times and shows their average; an early tap adds a one-second penalty. Screen and input hardware can affect the result.