USCF player statistics
Carroll, Brennan
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-17 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +135
- Feb 2026 to Mar 2026
- Biggest drop
- -11
- Mar 2026 to Apr 2026
- Longest rise
- 1 update
- +135 from Feb 2026 to Mar 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±26
- Mean absolute change; spread ±51.2
Regular rating in context
United States
#55,333of 83,635 rated members · higher than 33.7%
28,248 lower · 55 same rating · 55,332 higher · ties share a rank
Massachusetts
#1,325of 1,677 rated members · higher than 20.9%
351 lower · 2 same rating · 1,324 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,809 within 100 points of 563 (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; 33.7% below 563)
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 | 563no change | 546no change |
| Aug 2026 | 563no change | 546no change |
| Jul 2026 | 563no change | 546no change |
| Jun 2026 | 563no change | 546no change |
| May 2026 | 563+87 | 546+83 |
| Apr 2026 | 476 P-11 · 23 games | 463 P-17 · 23 games |
| Mar 2026 | 487 P+135 · 16 games | 480 P+132 · 16 games |
| Feb 2026 | 352 Pno change · 16 games | 348 Pno change · 16 games |
| Jan 2026 | 352 Pno change · 12 games | 348 Pno change · 12 games |
| Dec 2025 | 352 P12 games | 348 P12 games |