Reaction Time Test
Tap or press Space the instant the ring flares. The wait is random, false starts repeat the trial, and your score is the median over 8 trials — the same instrument cognitive labs use, not a single lucky click.
Start the test — free, no signup
What's a good score?
< 200 ms — Sharp — practiced gamers on a good setup.
200–250 ms — Solid; the fast side of the population.
250–300 ms — Around the adult average of ~250 ms.
> 300 ms — For a practiced player, usually “slow right now,” not “slow.”
What this test measures
Simple reaction time is the most state-sensitive measurement in cognitive science — it moves with sleep, fatigue, stress, and time of day. One all-nighter slows it by roughly +49 ms in lab studies. That’s why a single score means little: the real question is whether you’re fast for you, today.
In a 516-player study of League of Legends players, reaction speed was the strongest cognitive correlate of rank on record — which is why this test anchors our daily readiness check.
Questions players ask
What is a good reaction time for gaming?
Practiced gamers typically land between 180 and 230 ms on a visual click test; the general adult average is around 250 ms. Hardware adds real delay, so compare scores on the same device only.
Why does my reaction time change day to day?
Reaction speed is highly state-sensitive: sleep loss, fatigue, stress and time of day all move it — a skipped night alone is worth about +49 ms and ~5× more attention lapses in lab conditions.
Can I improve my reaction time?
Practice reliably sharpens your performance on reaction tasks, and consistent sleep protects it. Honest note: transfer to game outcomes varies by person — track your own trend rather than trusting a single number.
The daily version
This test is one slot of our free 3-minute daily readiness check — five weighted measurements scored against your own baseline, with an honest verdict before you queue. Run today's check.