USCF player statistics
Riquelme, Sofia V.
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-10 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +75
- Apr 2026 to May 2026
- Biggest drop
- -44
- Mar 2026 to Apr 2026
- Longest rise
- 1 update
- +75 from Apr 2026 to May 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±17
- Mean absolute change; spread ±32.6
Regular rating in context
United States
#56,442of 83,635 rated members · higher than 32.4%
27,140 lower · 54 same rating · 56,441 higher · ties share a rank
Florida
#2,943of 4,396 rated members · higher than 32.9%
1,449 lower · 5 same rating · 2,942 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,881 within 100 points of 543 (this player included)
500–549: 2,741 members (3.2%) · highlighted band is the player’s · dashed line is the target
32.8% below 550 (27,504 of 83,635; 32.4% below 543)
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 | 543no change | 533no change |
| Aug 2026 | 543no change | 533no change |
| Jul 2026 | 543no change | 533no change |
| Jun 2026 | 543no change | 533no change |
| May 2026 | 543+75 | 533+73 |
| Apr 2026 | 468-44 | 460-46 |
| Mar 2026 | 512 Pno change · 22 games | 506 Pno change · 22 games |
| Feb 2026 | 512 P-31 · 22 games | 506 P-32 · 22 games |
| Jan 2026 | 543 Pno change · 18 games | 538 Pno change · 18 games |
| Dec 2025 | 543 P18 games | 538 P18 games |