Leaderboards
Ranking methodology
BrainRivals leaderboards provide competitive context for signed-in players. They are not clinical norms or representative population benchmarks.
Which submissions are eligible
Valid scores saved by a signed-in player are considered automatically. Before saving and publication, the server checks the test-specific raw-data shape, recalculates the score from that data, and applies basic plausibility limits before saving an eligible result.
These automated checks reduce malformed or mechanically impossible submissions, but they do not prove a player's identity, testing conditions, or fair play.
A player can remove an individual result from their profile history. Another eligible saved result may still represent that player on the same test board.
How ranking works
- Each board keeps one best eligible score per player, test, and time window.
- Lower scores rank first for lower-is-better tasks; higher scores rank first for higher-is-better tasks.
- If two scores are equal, the earlier completion time ranks first.
Time windows
- Daily
- Starts at 00:00 UTC each day.
- Weekly
- Starts at 00:00 UTC each Monday.
- Monthly
- Starts at 00:00 UTC on the first day of each month.
- All-time
- Includes eligible submissions since the leaderboard epoch.
Country filters
A country board filters by the two-letter country code attached to the eligible leaderboard entry when that score was saved. The global board has no country filter.
Limitations
- Leaderboard participants are self-selected and are not population-representative.
- Browser, device, input hardware, environment, and practice can affect results.
- Automated validation is limited and cannot establish that every run was fair.
- Rankings can change as new scores arrive or if an invalid entry is removed.