USCF player statistics
Su, Ziyang
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-49 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +158
- Dec 2025 to Jan 2026
- Biggest drop
- -35
- Apr 2026 to May 2026
- Longest rise
- 4 updates
- +272 from Dec 2025 to Apr 2026
- Updates that moved
- 9 of 9
- Latest +6, Aug 2026 to Sep 2026
- Typical move
- ±39
- Mean absolute change; spread ±64.2
Regular rating in context
United States
#18,642of 83,635 rated members · higher than 77.6%
64,962 lower · 32 same rating · 18,641 higher · ties share a rank
New York
#1,971of 9,415 rated members · higher than 79%
7,440 lower · 5 same rating · 1,970 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,922 within 100 points of 1,456 (this player included)
1,450–1,499: 1,474 members (1.7%) · highlighted band is the player’s · dashed line is the target
79.2% below 1,500 (66,280 of 83,635; 77.6% below 1,456)
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 | 1,456+6 | 1,407+5 |
| Aug 2026 | 1,450+15 | 1,402+26 |
| Jul 2026 | 1,435-20 | 1,376+11 |
| Jun 2026 | 1,455-5 | 1,365+28 |
| May 2026 | 1,460-35 | 1,337-25 |
| Apr 2026 | 1,495+110 | 1,362+33 |
| Mar 2026 | 1,385+1 | 1,329no change |
| Feb 2026 | 1,384+3 | 1,329-2 |
| Jan 2026 | 1,381+158 | 1,331+151 |
| Dec 2025 | 1,223 | 1,180 |