Reaction Time Statistics
Live numbers from scores that players post to our leaderboards. Pick a test to see its median, mean and spread.
These reaction time statistics come from real scores that players post on Reaction Time Testers. For each test you see the median, the mean and a chart of how scores spread. The median is the middle score, so half of the posted results are faster.
Where these numbers come from
Only scores that players choose to post with a nickname are counted. Impossible results, such as clicks faster than 100 ms, are rejected before they are saved. The numbers grow and change as more people play.
Until a test has 1,000 posted scores, the percentile you see after a game blends our reference curve with real player data. Past that point it uses player data only.
How to read the chart
Each bar is a 20 ms band, such as 240 to 260 ms. A taller bar means more players landed in that band. Find your own score along the bottom to see where you sit.
For the light board, the bars count hits instead of milliseconds, so higher is better there.
Frequently asked questions
What is the median reaction time here?
It is the middle score of everything posted for that test, shown live at the top of the chart. Half of the players were faster and half were slower. It moves a little as new scores come in.
Why show the median and not only the average?
A few very slow scores can pull the average up. The median ignores those extremes, so it is a fairer picture of a typical player. We show both so you can compare.
Are these scores checked?
Yes. Each test has a sensible range, and anything outside it is refused before it is saved. Nicknames with rude words or links are blocked too.
Do my practice rounds count?
No. Only scores you choose to post to the leaderboard are counted. Your normal history stays on your own device.
Why do phone scores look slower?
Touchscreens and phone displays add a small delay, often 20 to 60 ms. The statistics mix every device, so a phone player may sit a little right of the middle.
How often do the numbers update?
Every time you open or switch a test, the page asks for the latest scores. There is no daily delay, so a new post shows up on your next visit.
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