USCF player statistics
Guo, Grayson
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 5 published updates since May 2026
Other formats against Regular
+2 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +236
- May 2026 to Jun 2026
- Biggest drop
- -35
- Jul 2026 to Aug 2026
- Longest rise
- 1 update
- +236 from May 2026 to Jun 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±68
- Mean absolute change; spread ±124.9
Regular rating in context
United States
#51,879of 83,635 rated members · higher than 37.9%
31,711 lower · 46 same rating · 51,878 higher · ties share a rank
California
#5,917of 9,051 rated members · higher than 34.5%
3,131 lower · 4 same rating · 5,916 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,359 within 100 points of 628 (this player included)
600–649: 2,641 members (3.1%) · highlighted band is the player’s · dashed line is the target
39.2% below 650 (32,836 of 83,635; 37.9% below 628)
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 | 628 Pno change · 20 games | 630 Pno change · 20 games |
| Aug 2026 | 628 P-35 · 20 games | 630 P-34 · 20 games |
| Jul 2026 | 663 Pno change · 15 games | 664 P+1 · 15 games |
| Jun 2026 | 663 P+236 · 15 games | 663 P+232 · 15 games |
| May 2026 | 427 P5 games | 431 P5 games |
| Apr 2026 | — | — |