USCF player statistics
O'Neil, William
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-110 Quick vs Regular
No national baseline for this rating band yet.
+7 Blitz vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +13
- Jun 2026 to Jul 2026
- Biggest drop
- -13
- Jul 2026 to Aug 2026
- Longest rise
- 1 update
- +13 from Jun 2026 to Jul 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±3
- Mean absolute change; spread ±6.5
Regular rating in context
United States
#13,712of 83,635 rated members · higher than 83.3%
69,680 lower · 244 same rating · 13,711 higher · ties share a rank
Colorado
#234of 1,027 rated members · higher than 77%
791 lower · 3 same rating · 233 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,926 within 100 points of 1,600 (this player included)
1,600–1,649: 1,832 members (2.1%) · highlighted band is the player’s · dashed line is the target
85.5% below 1,650 (71,512 of 83,635; 83.3% below 1,600)
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 | Blitz |
|---|---|---|---|
| Sep 2026 | 1,600no change | 1,490no change | 1,607no change |
| Aug 2026 | 1,600-13 | 1,490no change | 1,607no change |
| Jul 2026 | 1,613+13 | 1,490no change | 1,607no change |
| Jun 2026 | 1,600no change | 1,490no change | 1,607no change |
| May 2026 | 1,600no change | 1,490no change | 1,607no change |
| Apr 2026 | 1,600no change | 1,490no change | 1,607no change |
| Mar 2026 | 1,600no change | 1,490no change | 1,607no change |
| Feb 2026 | 1,600no change | 1,490no change | 1,607no change |
| Jan 2026 | 1,600no change | 1,490no change | 1,607no change |
| Dec 2025 | 1,600 | 1,490 | 1,607 |