USCF player statistics
Sahm, Corwin Grayson
- Gender
- Male
- Floor
- Regular 118 · Quick 119
- Rated games
- Quick 4
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- —
- No consecutive gains yet
- Current run
- 1 update
- Unchanged since Oct 2026
- Typical move
- ±0
- Mean absolute change per update
Regular rating in context
United States
#62,737of 83,032 rated members · higher than 24.3%
20,234 lower · 62 same rating · 62,736 higher · ties share a rank
New Mexico
#392of 448 rated members · higher than 12.5%
56 lower · 1 same rating · 391 higher · ties share a rank
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 10,846 within 100 points of 426 (this player included)
400–449: 2,739 members (3.2%) · highlighted band is the player’s · dashed line is the target
25.9% below 450 (21,555 of 83,032; 24.3% below 426)
Percentile over time · United States
24.3% higher than · Nov 2026 · rank #62,737 of 83,032
Since Oct 2026
-0.1 pts
How these comparisons are calculated
Chess67 calculations from the Nov 2026 monthly rating update, using the same population as the USCF statistics pages: US members classified as active in the published monthly records, excluding lifetime-coded records, provisional ratings included. Ties share a rank; “lower” is strictly lower; national and state groups overlap. The target explorer keeps the population fixed, with this player at their recorded rating: it is a rating comparison, not a prediction of future rank.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick |
|---|---|---|
| Nov 2026 | 426 Pno change · 12 games | 479 Pno change · 12 games |
| Oct 2026 | 426 P12 games | 479 P+378 · 12 games |
| Sep 2026 | — | 101 P4 games |