USCF player statistics
Zhou, Ryan Ziqian
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 9 published updates since Jan 2026
Other formats against Regular
-10 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +224
- May 2026 to Jun 2026
- Biggest drop
- -57
- Jun 2026 to Jul 2026
- Longest rise
- 1 update
- +224 from May 2026 to Jun 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±35
- Mean absolute change; spread ±84.5
Regular rating in context
United States
#54,211of 83,635 rated members · higher than 35.1%
29,370 lower · 55 same rating · 54,210 higher · ties share a rank
California
#6,158of 9,051 rated members · higher than 31.9%
2,889 lower · 5 same rating · 6,157 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,625 within 100 points of 584 (this player included)
550–599: 2,691 members (3.2%) · highlighted band is the player’s · dashed line is the target
36.1% below 600 (30,195 of 83,635; 35.1% below 584)
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 | 584 Pno change · 19 games | 574 Pno change · 19 games |
| Aug 2026 | 584 Pno change · 19 games | 574 P-1 · 19 games |
| Jul 2026 | 584 P-57 · 19 games | 575 P-52 · 19 games |
| Jun 2026 | 641 P+224 · 14 games | 627 P+225 · 14 games |
| May 2026 | 417 Pno change · 5 games | 402 Pno change · 5 games |
| Apr 2026 | 417 Pno change · 5 games | 402 Pno change · 5 games |
| Mar 2026 | 417 Pno change · 5 games | 402 Pno change · 5 games |
| Feb 2026 | 417 Pno change · 5 games | 402 Pno change · 5 games |
| Jan 2026 | 417 P5 games | 402 P5 games |
| Dec 2025 | — | — |