Verified runs · re-scored server-side
Reaction time leaderboard
The fastest verified reaction times. Visual ranks by median; audio ranks by average across 10 randomized cues. Every submission is screened and shown with its error bars.
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Every run is re-scored server-side from raw trial data. Be the first on the board.
Run the visual testEvery run re-scored from raw trial data · sub-50 ms = not a reaction · fast band verified behaviorally · near-zero variance flagged · how we measure →
How a run gets ranked
Raw trials, re-scored
Your browser submits per-trial timestamps, not a score. The server re-derives the seeded schedule and recomputes the median with the same Rust core that ran on your device.
Screened behaviorally
Anticipation is a pattern, not a speed: early presses against the randomized wait and near-zero variance reject a run at any speed — while genuinely fast, clean sessions count and rank.
Context stays attached
Every entry keeps its ± confidence band and trial count. A number never travels without the uncertainty that made it.