USCF player statistics
Guo, Jiacheng Jason
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-443 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +426
- Feb 2026 to Mar 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 2 updates
- +627 from Jan 2026 to Mar 2026
- Current run
- 6 updates
- Unchanged since Mar 2026
- Typical move
- ±70
- Mean absolute change; spread ±149.2
Regular rating in context
United States
#31,746of 83,635 rated members · higher than 62%
51,861 lower · 29 same rating · 31,745 higher · ties share a rank
New Jersey
#1,278of 3,003 rated members · higher than 57.3%
1,723 lower · 3 same rating · 1,277 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 7,542 within 100 points of 1,081 (this player included)
1,050–1,099: 1,855 members (2.2%) · highlighted band is the player’s · dashed line is the target
62.8% below 1,100 (52,555 of 83,635; 62% below 1,081)
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 | 1,081no change | 638 P+1 · 24 games |
| Aug 2026 | 1,081no change | 637 P-1 · 24 games |
| Jul 2026 | 1,081no change | 638 Pno change · 24 games |
| Jun 2026 | 1,081no change | 638 Pno change · 24 games |
| May 2026 | 1,081no change | 638 Pno change · 24 games |
| Apr 2026 | 1,081no change | 638 Pno change · 24 games |
| Mar 2026 | 1,081+426 | 638 Pno change · 24 games |
| Feb 2026 | 655 P+201 · 24 games | 638 P+202 · 24 games |
| Jan 2026 | 454 Pno change · 20 games | 436 Pno change · 20 games |
| Dec 2025 | 454 P20 games | 436 P20 games |