USCF player statistics
Qiu, Carson
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-81 Quick vs Regular
No national baseline for this rating band yet.
-5 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +144
- Jul 2026 to Aug 2026
- Biggest drop
- -21
- Jun 2026 to Jul 2026
- Longest rise
- 4 updates
- +208 from Feb 2026 to Jun 2026
- Updates that moved
- 8 of 9
- Latest -8, Aug 2026 to Sep 2026
- Typical move
- ±43
- Mean absolute change; spread ±62.8
Regular rating in context
United States
#53,647of 83,635 rated members · higher than 35.8%
29,942 lower · 47 same rating · 53,646 higher · ties share a rank
California
#6,093of 9,051 rated members · higher than 32.6%
2,954 lower · 5 same rating · 6,092 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,610 within 100 points of 595 (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; 35.8% below 595)
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 | Blitz |
|---|---|---|---|
| Sep 2026 | 595-8 | 514-79 | 590 P16 games |
| Aug 2026 | 603+144 | 593+141 | — |
| Jul 2026 | 459-21 | 452-26 | — |
| Jun 2026 | 480+134 | 478+130 | — |
| May 2026 | 346+59 | 348+51 | — |
| Apr 2026 | 287+5 | 297no change | — |
| Mar 2026 | 282+10 | 297+3 | — |
| Feb 2026 | 272no change | 294no change | — |
| Jan 2026 | 272-4 | 294no change | — |
| Dec 2025 | 276 | 294 | — |