USCF player statistics
Cook, Shawn
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-23 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +253
- Mar 2026 to Apr 2026
- Biggest drop
- -253
- Jul 2026 to Aug 2026
- Longest rise
- 1 update
- +253 from Mar 2026 to Apr 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±56
- Mean absolute change; spread ±126.5
Regular rating in context
United States
70.6%of the comparison population has a lower rating.
59,086 lower · 39 same rating · 24,510 higher
West Virginia
71.3%of the comparison population has a lower rating.
179 lower · 0 same rating · 72 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,895 within 100 points of 1,287
1,250–1,299: 1,642 members (1.9%) · highlighted band is the player’s · dashed line is the target
71.1% below 1,300 (59,522 of 83,635; 70.6% below 1,287)
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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.
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 | 1,287no change | 1,264no change |
| Aug 2026 | 1,287-253 | 1,264-182 |
| Jul 2026 | 1,540 Pno change · 6 games | 1,446 Pno change · 6 games |
| Jun 2026 | 1,540 Pno change · 6 games | 1,446 Pno change · 6 games |
| May 2026 | 1,540 Pno change · 6 games | 1,446 Pno change · 6 games |
| Apr 2026 | 1,540 P+253 · 6 games | 1,446 P+155 · 6 games |
| Mar 2026 | 1,287no change | 1,291 Pno change · 15 games |
| Feb 2026 | 1,287no change | 1,291 Pno change · 15 games |
| Jan 2026 | 1,287no change | 1,291 Pno change · 15 games |
| Dec 2025 | 1,287 | 1,291 P15 games |