tap · click · or press any key
F1-style reaction trainer
Watch the five lights illuminate one at a time. After a random hold, they all go out. That's your cue. React early and it's a jump-start.
last — —
best — —
How it works. Click Start (or press any key) and
five red lights come on one at a time, just like an F1 grid. The hold
after the fifth light is randomized between 0.8s and 3.2s. When the
lights go out, react as fast as you can. Anything under 200 ms is
professional-driver territory. Anything that looks under 150 ms is
probably a bad sample — humans don't actually go that fast.