USCF player statistics
Seymour, David
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +13
- Jan 2026 to Feb 2026
- Biggest drop
- -1
- Mar 2026 to Apr 2026
- Longest rise
- 1 update
- +13 from Jan 2026 to Feb 2026
- Current run
- 5 updates
- Unchanged since Apr 2026
- Typical move
- ±2
- Mean absolute change; spread ±4.4
Regular rating in context
United States
#54,561of 83,635 rated members · higher than 34.7%
29,026 lower · 49 same rating · 54,560 higher · ties share a rank
Massachusetts
#1,317of 1,677 rated members · higher than 21.4%
360 lower · 1 same rating · 1,316 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,663 within 100 points of 578 (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; 34.7% below 578)
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 |
|---|---|
| Sep 2026 | 578 Pno change · 7 games |
| Aug 2026 | 578 Pno change · 7 games |
| Jul 2026 | 578 Pno change · 7 games |
| Jun 2026 | 578 Pno change · 7 games |
| May 2026 | 578 Pno change · 7 games |
| Apr 2026 | 578 P-1 · 7 games |
| Mar 2026 | 579 Pno change · 7 games |
| Feb 2026 | 579 P+13 · 7 games |
| Jan 2026 | 566 Pno change · 5 games |
| Dec 2025 | 566 P5 games |