USCF player statistics
Sebastian, Adam Frederick
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-47 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +294
- Apr 2026 to May 2026
- Biggest drop
- -63
- Dec 2025 to Jan 2026
- Longest rise
- 1 update
- +294 from Apr 2026 to May 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±40
- Mean absolute change; spread ±102.8
Regular rating in context
United States
#44,139of 83,635 rated members · higher than 47.1%
39,457 lower · 40 same rating · 44,138 higher · ties share a rank
Tennessee
#647of 1,158 rated members · higher than 44.1%
511 lower · 1 same rating · 646 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,421 within 100 points of 787 (this player included)
750–799: 2,331 members (2.7%) · highlighted band is the player’s · dashed line is the target
47.8% below 800 (40,060 of 83,635; 47.1% below 787)
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 | 787no change | 740no change |
| Aug 2026 | 787no change | 740no change |
| Jul 2026 | 787no change | 740no change |
| Jun 2026 | 787no change | 740no change |
| May 2026 | 787+294 | 740+300 |
| Apr 2026 | 493 Pno change · 20 games | 440 Pno change · 20 games |
| Mar 2026 | 493 Pno change · 20 games | 440 Pno change · 20 games |
| Feb 2026 | 493 Pno change · 20 games | 440 Pno change · 20 games |
| Jan 2026 | 493 P-63 · 20 games | 440 P-72 · 20 games |
| Dec 2025 | 556 P20 games | 512 P20 games |