USCF player statistics
Harris, Sebastien
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-13 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +195
- Jan 2026 to Feb 2026
- Biggest drop
- -48
- Apr 2026 to May 2026
- Longest rise
- 2 updates
- +278 from Jan 2026 to Mar 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±39
- Mean absolute change; spread ±73.7
Regular rating in context
United States
#57,784of 83,635 rated members · higher than 30.8%
25,803 lower · 49 same rating · 57,783 higher · ties share a rank
New York
#6,315of 9,415 rated members · higher than 32.8%
3,095 lower · 6 same rating · 6,314 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,972 within 100 points of 518 (this player included)
500–549: 2,741 members (3.2%) · highlighted band is the player’s · dashed line is the target
32.8% below 550 (27,504 of 83,635; 30.8% below 518)
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 | 518no change | 505no change |
| Aug 2026 | 518no change | 505no change |
| Jul 2026 | 518no change | 505no change |
| Jun 2026 | 518no change | 505no change |
| May 2026 | 518-48 | 505-49 |
| Apr 2026 | 566-28 | 554-31 |
| Mar 2026 | 594+83 | 585+80 |
| Feb 2026 | 511+195 | 505+194 |
| Jan 2026 | 316no change | 311no change |
| Dec 2025 | 316 | 311 |