Mini Games
Racing Start
Five red lights on, then out — react the instant they vanish. Measure your reaction time in milliseconds.
How to Play
- Five red lights switch on, one per second.
- After a random hold of 0.2–3 seconds, they all go out — click or tap right then.
- Pressing before lights-out is a false start: +1 second on your average and the round restarts.
My Best Average
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Try to beat your personal best!
Ranking
| Rank | Nickname | Score |
|---|---|---|
| Rank | Nickname | Score |
|---|---|---|
- |  You | - |
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Records are not shared across different browsers or devices.
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Racing Start is a reaction game modeled on the five-red-light start used in motor racing. The lights come on one per second; once all five are lit, they hold for a random 0.2 to 3 seconds and then go out together. The moment they go dark, click or tap — the gap between lights-out and your press is your launch time in milliseconds. Press while the lights are still on and it's a false start: the round doesn't count and restarts, and each false start adds 1 second to your average. A session counts five valid launches and shows your average (penalties included), your single best launch and your number of false starts. An average of 220 ms or less earns "Pole position!", up to 280 ms "Lightning launch!" and up to 350 ms "Clean getaway!". Most people's simple reaction time sits roughly between 200 and 300 ms, so a suspiciously low number is usually a lucky guess rather than a true reaction. Because the hold changes every time, reacting to the lights beats trying to time them. Your average goes on the leaderboard, and a challenge link lets friends take the same test. Racing Start is an unofficial fan-made game and is not affiliated with Formula 1 or the FIA.
Frequently Asked Questions
Q. How does Racing Start work?
A. Five red lights switch on one per second, then go out together after a random hold of 0.2 to 3 seconds. Click or tap the moment they go out; the time from lights-out to your press is recorded in milliseconds.
Q. What happens if I press before the lights go out?
A. It's a false start. The round doesn't count and restarts, and every false start adds 1 second (1,000 ms) to your average.
Q. What is a good Racing Start time?
A. An average of 220 ms or less earns the top grade, "Pole position"; 221–280 ms is "Lightning launch", 281–350 ms "Clean getaway", and anything slower "Keep practicing". The leaderboard records your average over five valid launches, penalties included.
Q. Is it the same as a real F1 start?
A. It follows the same pattern — five red lights lit one second apart, then lights out without warning — but the 0.2–3 second hold range is this game's own setting. Racing Start is an unofficial game, not affiliated with Formula 1.