USCF player statistics
Ahn, Sean
Official US Chess recordRegular rating
Provisional rating · Sep 2026
Sep 2026
448 provisional
The comparison field
Regular rating in context
Alabama
Among 611 rated members; tied ratings share a rank.
Higher than 23.5% of ratings in this population.
United States
Among 83,635 rated members; tied ratings share a rank.
Higher than 26.2% of ratings in this population.
Where this rating sits
83,635 rated members · 50-point bands
Median falls in
800–849
10,949 members have ratings within 100 points of 448, including this player.
Highlighted band: player rating · Dashed line: target rating
400–449: 2,735 members (3.2%). Select a band to explore the distribution.
Explore a target rating
Compare a rating with this published population.
26.3% have ratings below 450.
22,043 of 83,635 members. At 448, the figure is 26.2%.
The population stays fixed. This is a rating comparison, not a prediction of future rank or results. The published population includes this player at their recorded rating.
How these comparisons are calculated
Calculated from the Sep 2026 monthly rating update, using the same population as Chess67’s USCF statistics: US members classified as active in the published monthly records, excluding lifetime-coded records. Includes provisional ratings. These are Chess67 calculations, not official US Chess rankings. “Lower” is strictly lower; ties share a rank. National and state groups overlap.
Published ratings by month
All available formats. P indicates a provisional rating.
| Month | Regular | Quick |
|---|---|---|
| Sep 2026 | 448 P | 442 P |
| Aug 2026 | 448 P | 442 P |
| Jul 2026 | 448 P | 442 P |
| Jun 2026 | 448 P | 442 P |
| May 2026 | 613 P | 613 P |
| Apr 2026 | 613 P | 613 P |
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