Race Reaction
Race Reaction Test
Practice your launch reflexes with a five-light start sequence. Wait for lights out, then react as fast as you can.
Last result
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Personal best
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Attempts
0
False starts
0
Leaderboard profile
Set the name and country that appear in the world leaderboard.
Default: Anonymous
Status
Ready
Press Start, Space, or click/tap to begin.
Press Space or Enter (or click/tap) to start and react. Tap/click the arena when the lights go out.
World leaderboard
Top global reaction times submitted by players worldwide.
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No results yet. Be the first to set a time.
How the race start works
The lights build one by one, then switch off without warning. Your job is to react the instant the lights go dark. Each run records your time in seconds, updates your personal best, and tracks your total attempts.
Precision
Timing uses high-resolution performance clocks for accurate reaction measurements.
Randomized
The lights-out delay changes every round to prevent guessing.
Local
Your best time and counts stay in your browser for quick practice sessions.
FAQ
- When should I click or press Space?
- Wait until all five lights turn off at once, then react as fast as you can. Clicking early counts as a false start.
- Does the test work on mobile?
- Yes. Tap anywhere inside the arena on phones or tablets, or use a keyboard on desktop.
- How is my personal best stored?
- Your best time and counters are saved locally in your browser so you can keep practicing without signing in.
Racing inspiration
Race Reaction Test is a reaction time trainer inspired by motorsport and Formula 1-style start lights.
Not affiliated with Formula 1, FIA, or any racing series.
This is a simple demo page for the reaction test. There is no login and no public profile. We do not use cookies. If you join the leaderboard, we store your reaction time and nickname (if you provide one).