USCF player statistics
Cottrell, Deparse
US Chess membership expired on October 31, 2026. Published rating history is still shown below.
Join / Renew USCFRegular rating
1,857+99 since Oct 2026
Published rating · Nov 2026 · 12 published updates since Dec 2025
Nov 20261,857 Regular
Dec 2025Nov 2026
Other formats against Regular
-824 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +144
- Dec 2025 to Jan 2026
- Biggest drop
- -17
- Jun 2026 to Jul 2026
- Longest rise
- 2 updates
- +230 from Dec 2025 to Feb 2026
- Updates that moved
- 8 of 11
- Latest +99, Oct 2026 to Nov 2026
- Typical move
- ±37
- Mean absolute change; spread ±55
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick |
|---|---|---|
| Nov 2026 | 1,857+99 | 1,033+197 |
| Oct 2026 | 1,758+33 | 836no change |
| Sep 2026 | 1,725-1 | 836no change |
| Aug 2026 | 1,726-11 | 836no change |
| Jul 2026 | 1,737-17 | 836no change |
| Jun 2026 | 1,754no change | 836no change |
| May 2026 | 1,754no change | 836no change |
| Apr 2026 | 1,754-13 | 836+93 |
| Mar 2026 | 1,767no change | 743 P-156 · 22 games |
| Feb 2026 | 1,767+86 | 899 P+156 · 22 games |
| Jan 2026 | 1,681+144 | 743 Pno change · 22 games |
| Dec 2025 | 1,537 | 743 P22 games |