USCF player statistics
Brennan, William Charles
US Chess membership expired on July 31, 2026. Published rating history is still shown below.
Join / Renew USCFRegular rating
867
Provisional rating · Nov 2026 · 12 published updates since Dec 2025
Nov 2026867 provisional
Dec 2025Nov 2026
Other formats against Regular
+144 Quick vs Regular
No national baseline for this rating band yet.
+22 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +9
- Aug 2026 to Sep 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +9 from Aug 2026 to Sep 2026
- Current run
- 2 updates
- Unchanged since Sep 2026
- Typical move
- ±1
- Mean absolute change; spread ±2.7
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick | Blitz |
|---|---|---|---|
| Nov 2026 | 867 Pno change · 19 games | 1,011no change | 889 Pno change · 15 games |
| Oct 2026 | 867 Pno change · 19 games | 1,011no change | 889 Pno change · 15 games |
| Sep 2026 | 867 P+9 · 19 games | 1,011no change | 889 P+5 · 15 games |
| Aug 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| Jul 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| Jun 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| May 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| Apr 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| Mar 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| Feb 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| Jan 2026 | 858 Pno change · 19 games | 1,011no change | 884 Pno change · 15 games |
| Dec 2025 | 858 P19 games | 1,011 | 884 P15 games |