USCF player statistics
Cozza, Sofia L
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+72 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +27
- Jan 2026 to Feb 2026
- Biggest drop
- -27
- Mar 2026 to Apr 2026
- Longest rise
- 1 update
- +27 from Jan 2026 to Feb 2026
- Current run
- 5 updates
- Unchanged since Apr 2026
- Typical move
- ±6
- Mean absolute change; spread ±13.5
Regular rating in context
United States
6.1%of the comparison population has a lower rating.
5,104 lower · 68 same rating · 78,463 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,046 within 100 points of 121
100–149: 6,615 members (7.9%) · highlighted band is the player’s · dashed line is the target
7.9% below 150 (6,615 of 83,635; 6.1% below 121)
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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.
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 | 121 Pno change · 18 games | 193 Pno change · 24 games |
| Aug 2026 | 121 Pno change · 18 games | 193 Pno change · 24 games |
| Jul 2026 | 121 Pno change · 18 games | 193 Pno change · 24 games |
| Jun 2026 | 121 Pno change · 18 games | 193 Pno change · 24 games |
| May 2026 | 121 Pno change · 18 games | 193 Pno change · 24 games |
| Apr 2026 | 121 P-27 · 18 games | 193 P-11 · 24 games |
| Mar 2026 | 148 Pno change · 18 games | 204 Pno change · 24 games |
| Feb 2026 | 148 P+27 · 18 games | 204 P+10 · 24 games |
| Jan 2026 | 121 Pno change · 18 games | 194 Pno change · 24 games |
| Dec 2025 | 121 P18 games | 194 P24 games |