USCF player statistics
Blackwood, William Harris
US Chess membership expired on November 30, 2024. Published rating history is still shown below.
Join / Renew USCFRegular rating
1,173
Provisional rating · Nov 2026 · 12 published updates since Dec 2025
Nov 20261,173 provisional
Dec 2025Nov 2026
Other formats against Regular
+51 Online Quick vs Regular
No national baseline for this rating band yet.
+101 Online Blitz vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- —
- No gain between published updates yet
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- —
- No consecutive gains yet
- Current run
- 11 updates
- Unchanged since Dec 2025
- Typical move
- ±0
- Mean absolute change; spread ±0
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Online Quick | Online Blitz |
|---|---|---|---|
| Nov 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Oct 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Sep 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Aug 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Jul 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Jun 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| May 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Apr 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Mar 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Feb 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Jan 2026 | 1,173 Pno change · 14 games | 1,224no change | 1,274no change |
| Dec 2025 | 1,173 P14 games | 1,224 | 1,274 |