USCF player statistics
Sumners, Mark A
Official US Chess record- FIDE
- FIDE 0
Regular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-57 Quick vs Regular (provisional)
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
- -17
- Jun 2026 to Jul 2026
- Longest rise
- —
- No consecutive gains yet
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±2
- Mean absolute change; spread ±5.7
Regular rating in context
United States
#11,234of 83,635 rated members · higher than 86.5%
72,371 lower · 31 same rating · 11,233 higher · ties share a rank
California
#1,493of 9,051 rated members · higher than 83.5%
7,558 lower · 1 same rating · 1,492 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 6,314 within 100 points of 1,679 (this player included)
1,650–1,699: 1,441 members (1.7%) · highlighted band is the player’s · dashed line is the target
87.2% below 1,700 (72,953 of 83,635; 86.5% below 1,679)
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 | 1,679 Pno change · 18 games | 1,622 Pno change · 6 games |
| Aug 2026 | 1,679 Pno change · 18 games | 1,622 P-1 · 6 games |
| Jul 2026 | 1,679 P-17 · 18 games | 1,623 P6 games |
| Jun 2026 | 1,696 Pno change · 13 games | — |
| May 2026 | 1,696 Pno change · 13 games | — |
| Apr 2026 | 1,696 Pno change · 13 games | — |
| Mar 2026 | 1,696 Pno change · 13 games | — |
| Feb 2026 | 1,696 Pno change · 13 games | — |
| Jan 2026 | 1,696 Pno change · 13 games | — |
| Dec 2025 | 1,696 P13 games | — |