USCF player statistics
Wu, Cooper
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+2 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +112
- May 2026 to Jun 2026
- Biggest drop
- -45
- Aug 2026 to Sep 2026
- Longest rise
- 1 update
- +112 from May 2026 to Jun 2026
- Updates that moved
- 3 of 9
- Latest -45, Aug 2026 to Sep 2026
- Typical move
- ±18
- Mean absolute change; spread ±42
Regular rating in context
United States
#70,733of 83,635 rated members · higher than 15.3%
12,856 lower · 47 same rating · 70,732 higher · ties share a rank
Arizona
#1,433of 1,686 rated members · higher than 14.9%
252 lower · 2 same rating · 1,432 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,228 within 100 points of 278 (this player included)
250–299: 2,532 members (3%) · highlighted band is the player’s · dashed line is the target
16.6% below 300 (13,947 of 83,635; 15.3% below 278)
How these comparisons are calculated
Chess67 calculations from the Sep 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 |
|---|---|---|
| Sep 2026 | 278 P-45 · 24 games | 280 P-44 · 24 games |
| Aug 2026 | 323 P-1 · 20 games | 324 Pno change · 20 games |
| Jul 2026 | 324 Pno change · 20 games | 324 Pno change · 20 games |
| Jun 2026 | 324 P+112 · 20 games | 324 P+112 · 20 games |
| May 2026 | 212 Pno change · 16 games | 212 Pno change · 16 games |
| Apr 2026 | 212 Pno change · 16 games | 212 Pno change · 16 games |
| Mar 2026 | 212 Pno change · 16 games | 212 Pno change · 16 games |
| Feb 2026 | 212 Pno change · 16 games | 212 Pno change · 16 games |
| Jan 2026 | 212 Pno change · 16 games | 212 Pno change · 16 games |
| Dec 2025 | 212 P16 games | 212 P16 games |