USCF player statistics
Cortez, Mauricio
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-34 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +373
- Feb 2026 to Mar 2026
- Biggest drop
- -20
- Apr 2026 to May 2026
- Longest rise
- 3 updates
- +519 from Jan 2026 to Apr 2026
- Updates that moved
- 6 of 9
- Latest +60, Aug 2026 to Sep 2026
- Typical move
- ±79
- Mean absolute change; spread ±121.7
Regular rating in context
United States
#33,952of 83,635 rated members · higher than 59.3%
49,652 lower · 32 same rating · 33,951 higher · ties share a rank
New York
#3,670of 9,415 rated members · higher than 60.9%
5,741 lower · 5 same rating · 3,669 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 7,925 within 100 points of 1,023 (this player included)
1,000–1,049: 1,959 members (2.3%) · highlighted band is the player’s · dashed line is the target
60.6% below 1,050 (50,700 of 83,635; 59.3% below 1,023)
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 | 1,023+60 | 989+47 |
| Aug 2026 | 963no change | 942no change |
| Jul 2026 | 963no change | 942no change |
| Jun 2026 | 963+110 | 942+112 |
| May 2026 | 853-20 | 830-26 |
| Apr 2026 | 873+107 | 856+108 |
| Mar 2026 | 766 P+373 · 20 games | 748 P+363 · 20 games |
| Feb 2026 | 393 P+39 · 20 games | 385 P+40 · 20 games |
| Jan 2026 | 354 Pno change · 8 games | 345 Pno change · 8 games |
| Dec 2025 | 354 P8 games | 345 P8 games |