USCF player statistics
Cox, Jefferson
Official US Chess record- FIDE
- FIDE 0
Regular rating
Provisional rating · Sep 2026 · 9 published updates since Jan 2026
Other formats against Regular
-156 Quick vs Regular (provisional)
No national baseline for this rating band yet.
-232 Blitz vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +125
- May 2026 to Jun 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +125 from May 2026 to Jun 2026
- Current run
- 3 updates
- Unchanged since Jun 2026
- Typical move
- ±17
- Mean absolute change; spread ±43.8
Regular rating in context
United States
#45,958of 83,635 rated members · higher than 44.9%
37,633 lower · 45 same rating · 45,957 higher · ties share a rank
Utah
#355of 656 rated members · higher than 45.7%
300 lower · 2 same rating · 354 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,581 within 100 points of 748 (this player included)
700–749: 2,394 members (2.8%) · highlighted band is the player’s · dashed line is the target
45.1% below 750 (37,729 of 83,635; 44.9% below 748)
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 | 748 Pno change · 24 games | 592 Pno change · 19 games | 516 Pno change · 8 games |
| Aug 2026 | 748 Pno change · 24 games | 592 Pno change · 19 games | 516 Pno change · 8 games |
| Jul 2026 | 748 Pno change · 24 games | 592 P-9 · 19 games | 516 Pno change · 8 games |
| Jun 2026 | 748 P+125 · 24 games | 601 Pno change · 15 games | 516 Pno change · 8 games |
| May 2026 | 623 Pno change · 17 games | 601 Pno change · 15 games | 516 Pno change · 8 games |
| Apr 2026 | 623 Pno change · 17 games | 601 Pno change · 15 games | 516 Pno change · 8 games |
| Mar 2026 | 623 P+11 · 17 games | 601 P15 games | 516 Pno change · 8 games |
| Feb 2026 | 612 Pno change · 17 games | — | 516 Pno change · 8 games |
| Jan 2026 | 612 P12 games | — | 516 Pno change · 8 games |
| Dec 2025 | — | — | 516 P8 games |