USCF player statistics
Keller, Jefferson Parker
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-86 Quick vs Regular (provisional)
No national baseline for this rating band yet.
-46 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +97
- Mar 2026 to Apr 2026
- Biggest drop
- -23
- Apr 2026 to May 2026
- Longest rise
- 1 update
- +97 from Mar 2026 to Apr 2026
- Updates that moved
- 3 of 9
- Latest -1, Aug 2026 to Sep 2026
- Typical move
- ±13
- Mean absolute change; spread ±34.2
Regular rating in context
United States
#55,519of 83,635 rated members · higher than 33.5%
28,057 lower · 60 same rating · 55,518 higher · ties share a rank
Mississippi
#249of 387 rated members · higher than 35.6%
138 lower · 1 same rating · 248 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,798 within 100 points of 560 (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; 33.5% below 560)
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 | Blitz |
|---|---|---|---|
| Sep 2026 | 560 P-1 · 16 games | 474 Pno change · 17 games | 514 Pno change · 12 games |
| Aug 2026 | 561 Pno change · 16 games | 474 Pno change · 17 games | 514 Pno change · 12 games |
| Jul 2026 | 561 Pno change · 16 games | 474 Pno change · 17 games | 514 Pno change · 12 games |
| Jun 2026 | 561 Pno change · 16 games | 474 P-94 · 17 games | 514 P12 games |
| May 2026 | 561 P-23 · 16 games | 568 P-36 · 12 games | — |
| Apr 2026 | 584 P+97 · 12 games | 604 P+139 · 8 games | — |
| Mar 2026 | 487 Pno change · 8 games | 465 Pno change · 4 games | — |
| Feb 2026 | 487 Pno change · 8 games | 465 Pno change · 4 games | — |
| Jan 2026 | 487 Pno change · 8 games | 465 Pno change · 4 games | — |
| Dec 2025 | 487 P8 games | 465 P4 games | — |