Reaction Time Test

In short A typical adult visual reaction time is 200 to 300 milliseconds, and trained esports players sit around 150 to 200. If your result looks worse than numbers posted online, the most likely explanation is not you: the measurement includes your display and browser, and that overhead is commonly 30 to 50 milliseconds of the total. A test on a 60 Hz laptop screen and one on a 240 Hz gaming monitor are measuring partly different things, and neither is measuring your nervous system alone. The number is therefore most useful compared against ITSELF — across a session, across a night's sleep, before and after coffee — rather than against a leaderboard. Several rounds are averaged because single-trial reaction time is extremely noisy, and one lucky anticipation can flatter a result by 80 milliseconds. That is also why the false-start guard exists: clicking before the signal appears is anticipation rather than reaction, and without discarding those the test rewards guessing. The genuinely interesting finding for most people is the spread rather than the mean — consistency drops off with fatigue long before the average does, which makes variability the more sensitive measure of how tired you are.