USCF player statistics
Yamazaki, Haku
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-11 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +282
- Dec 2025 to Jan 2026
- Biggest drop
- -54
- Mar 2026 to Apr 2026
- Longest rise
- 3 updates
- +423 from Dec 2025 to Mar 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±54
- Mean absolute change; spread ±98.2
Regular rating in context
United States
#42,960of 83,635 rated members · higher than 48.5%
40,636 lower · 40 same rating · 42,959 higher · ties share a rank
New York
#4,666of 9,415 rated members · higher than 50.4%
4,746 lower · 4 same rating · 4,665 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,184 within 100 points of 812 (this player included)
800–849: 2,310 members (2.7%) · highlighted band is the player’s · dashed line is the target
50.6% below 850 (42,370 of 83,635; 48.5% below 812)
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 | 812no change | 801no change |
| Aug 2026 | 812no change | 801no change |
| Jul 2026 | 812no change | 801no change |
| Jun 2026 | 812no change | 801no change |
| May 2026 | 812+10 | 801+34 |
| Apr 2026 | 802-54 | 767-88 |
| Mar 2026 | 856+53 | 855+43 |
| Feb 2026 | 803+88 | 812+99 |
| Jan 2026 | 715+282 | 713+283 |
| Dec 2025 | 433 | 430 |