USCF player statistics
Summerfield, William
Official US Chess record- Biggest rank climb · #62 in Washington (Quick)
- Top rated · #72 in Washington (Online Quick)
- Top rated · #45 in Washington (Regular)
- FIDE
- FIDE 39968545
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-994 Quick vs Regular (provisional)
No national baseline for this rating band yet.
-709 Online Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +169
- Mar 2026 to Apr 2026
- Biggest drop
- -20
- Jul 2026 to Aug 2026
- Longest rise
- 4 updates
- +210 from Mar 2026 to Jul 2026
- Updates that moved
- 8 of 9
- Latest +11, Aug 2026 to Sep 2026
- Typical move
- ±31
- Mean absolute change; spread ±54.8
Regular rating in context
United States
#1,234of 83,635 rated members · higher than 98.5%
82,396 lower · 6 same rating · 1,233 higher · ties share a rank
Washington
#45of 2,162 rated members · higher than 97.9%
2,117 lower · 1 same rating · 44 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 1,530 within 100 points of 2,181 (this player included)
2,150–2,199: 303 members (0.3%) · highlighted band is the player’s · dashed line is the target
98.6% below 2,200 (82,512 of 83,635; 98.5% below 2,181)
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 | Online Quick |
|---|---|---|---|
| Sep 2026 | 2,181+11 | 1,187 P+109 · 19 games | 1,472 Pno change · 17 games |
| Aug 2026 | 2,170-20 | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| Jul 2026 | 2,190+13 | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| Jun 2026 | 2,177+16 | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| May 2026 | 2,161+12 | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| Apr 2026 | 2,149+169 | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| Mar 2026 | 1,980no change | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| Feb 2026 | 1,980+22 | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| Jan 2026 | 1,958+19 | 1,078 Pno change · 16 games | 1,472 Pno change · 17 games |
| Dec 2025 | 1,939 | 1,078 P16 games | 1,472 P17 games |