USCF player statistics
Koichumanov, Amirkhan
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 8 published updates since Feb 2026
Other formats against Regular
-4 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +1
- Mar 2026 to Apr 2026
- Biggest drop
- -1
- Feb 2026 to Mar 2026
- Longest rise
- 1 update
- +1 from Mar 2026 to Apr 2026
- Updates that moved
- 4 of 7
- Latest +1, Aug 2026 to Sep 2026
- Typical move
- ±1
- Mean absolute change; spread ±0.8
Regular rating in context
United States
#73,738of 83,635 rated members · higher than 11.7%
9,848 lower · 50 same rating · 73,737 higher · ties share a rank
Illinois
#3,929of 4,678 rated members · higher than 15.9%
745 lower · 5 same rating · 3,928 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,002 within 100 points of 218 (this player included)
200–249: 2,417 members (2.8%) · highlighted band is the player’s · dashed line is the target
13.6% below 250 (11,415 of 83,635; 11.7% below 218)
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 | 218 P+1 · 5 games | 214 P+1 · 5 games |
| Aug 2026 | 217 P-1 · 5 games | 213 P-1 · 5 games |
| Jul 2026 | 218 Pno change · 5 games | 214 Pno change · 5 games |
| Jun 2026 | 218 Pno change · 5 games | 214 Pno change · 5 games |
| May 2026 | 218 Pno change · 5 games | 214 Pno change · 5 games |
| Apr 2026 | 218 P+1 · 5 games | 214 P+1 · 5 games |
| Mar 2026 | 217 P-1 · 5 games | 213 P-1 · 5 games |
| Feb 2026 | 218 P5 games | 214 P5 games |