F1 start lights reaction test
Test your reactions like a Formula 1 driver: five red lights, a random hold, then go.
Try a practice roundPlay today’s fiveHow it works
Five red lights come on one by one, then after a random hold they all turn green. Tap the moment they do. Three starts are averaged, and a jump start costs 300 ms.
What it measures
The sequence is modeled on a motor-racing start, where drivers react to the signal as the field launches. Racing drivers are known for responses of around two tenths of a second.
The build-up is the hard part. Five lights create suspense and an urge to anticipate, and the random hold punishes anyone who tries to time it instead of reacting.
What’s a good score?
In Reactdle, 300 ms or faster rates Sharp, up to 400 ms is Steady, and slower is Sluggish.
Tips
- Relax during the build-up; tension makes jump starts more likely.
- React to the color change itself, not to the rhythm of the lights coming on.
About Reactdle
Start Lights is one of twenty tests in Reactdle, a free daily reaction game. Every day everyone gets the same five tests, one from each kind: reflex, aim, brain, timing and words.