USCF player statistics
Buff, Aaron
Official US Chess record- Biggest rank climb · #69 in Georgia (Quick)
- Biggest rank climb · #64 in Georgia (Regular)
- Fastest rising · #47 in Georgia (Quick)
- Fastest rising · #50 in Georgia (Regular)
- FIDE
- FIDE 0
- US Chess reported rank
- #32,672 national · #679 in state
- Floor
- Regular 150 · Quick 150
US Chess record as of Sep 13, 2026
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-16 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +90
- Dec 2025 to Jan 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 2 updates
- +88 from Jul 2026 to Sep 2026
- Updates that moved
- 5 of 9
- Latest +84, Aug 2026 to Sep 2026
- Typical move
- ±34
- Mean absolute change; spread ±42.2
Regular rating in context
United States
#40,367of 83,635 rated members · higher than 51.6%
43,223 lower · 46 same rating · 40,366 higher · ties share a rank
Georgia
#857of 2,028 rated members · higher than 57.6%
1,170 lower · 2 same rating · 856 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,876 within 100 points of 869 (this player included)
850–899: 2,189 members (2.6%) · highlighted band is the player’s · dashed line is the target
53.2% below 900 (44,559 of 83,635; 51.6% below 869)
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 | 869+84 | 853+92 |
| Aug 2026 | 785+4 | 761+5 |
| Jul 2026 | 781no change | 756no change |
| Jun 2026 | 781+89 | 756+83 |
| May 2026 | 692no change | 673no change |
| Apr 2026 | 692no change | 673no change |
| Mar 2026 | 692+41 | 673+46 |
| Feb 2026 | 651no change | 627no change |
| Jan 2026 | 651+90 | 627+93 |
| Dec 2025 | 561 P23 games | 534 P23 games |