USCF player statistics
Bui, William
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-141 Quick vs Regular
No national baseline for this rating band yet.
-802 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +153
- Aug 2026 to Sep 2026
- Biggest drop
- -59
- Jan 2026 to Feb 2026
- Longest rise
- 2 updates
- +267 from Jul 2026 to Sep 2026
- Updates that moved
- 4 of 9
- Latest +153, Aug 2026 to Sep 2026
- Typical move
- ±39
- Mean absolute change; spread ±67.7
Regular rating in context
United States
#15,837of 83,635 rated members · higher than 81%
67,765 lower · 34 same rating · 15,836 higher · ties share a rank
Oklahoma
#121of 643 rated members · higher than 81.1%
522 lower · 1 same rating · 120 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,789 within 100 points of 1,536 (this player included)
1,500–1,549: 1,925 members (2.3%) · highlighted band is the player’s · dashed line is the target
81.5% below 1,550 (68,205 of 83,635; 81% below 1,536)
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 | 1,536+153 | 1,395+186 | 734 Pno change · 22 games |
| Aug 2026 | 1,383+114 | 1,209no change | 734 Pno change · 22 games |
| Jul 2026 | 1,269no change | 1,209no change | 734 Pno change · 22 games |
| Jun 2026 | 1,269no change | 1,209no change | 734 Pno change · 22 games |
| May 2026 | 1,269no change | 1,209no change | 734 Pno change · 22 games |
| Apr 2026 | 1,269-23 | 1,209-10 | 734 P-12 · 22 games |
| Mar 2026 | 1,292no change | 1,219no change | 746 Pno change · 16 games |
| Feb 2026 | 1,292-59 | 1,219-35 | 746 Pno change · 16 games |
| Jan 2026 | 1,351no change | 1,254+49 | 746 Pno change · 16 games |
| Dec 2025 | 1,351 | 1,205 | 746 P16 games |