React when the five start lights go out, avoid false starts, and compare your F1 reaction score on HumanRank.
F1 Test turns reaction time into a start-line challenge. You wait through the lights, resist the urge to jump, then respond as soon as the signal disappears.
F1 Test measures reaction speed under restraint. You need to stay ready while refusing to guess. That makes it different from a simple click-speed test: patience is part of the skill.
Your score uses your average valid reaction time across attempts. False starts do not represent real reactions, so the strongest score comes from clean launches that are both fast and legal.
The common mistake is timing the lights instead of reacting to them. If you start predicting the switch-off, you may get one fast attempt, but you also increase the chance of false starts.
F1 start reaction games borrow the drama of the grid launch: lights come on, the driver holds tension, then everything depends on reacting after they go out. The format works because it mixes speed with restraint; being early is not the same as being fast.