USCF player statistics
Diaz, Amaia
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-43 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +125
- Mar 2026 to Apr 2026
- Biggest drop
- -76
- Feb 2026 to Mar 2026
- Longest rise
- 2 updates
- +26 from May 2026 to Jul 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±33
- Mean absolute change; spread ±54
Regular rating in context
United States
#43,341of 83,635 rated members · higher than 48.1%
40,248 lower · 47 same rating · 43,340 higher · ties share a rank
New York
#4,712of 9,415 rated members · higher than 49.8%
4,698 lower · 6 same rating · 4,711 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 9,207 within 100 points of 804 (this player included)
800–849: 2,310 members (2.7%) · highlighted band is the player’s · dashed line is the target
50.6% below 850 (42,370 of 83,635; 48.1% below 804)
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 | 804no change | 761no change |
| Aug 2026 | 804no change | 761no change |
| Jul 2026 | 804+1 | 761no change |
| Jun 2026 | 803+25 | 761+6 |
| May 2026 | 778-31 | 755-12 |
| Apr 2026 | 809+125 | 767+104 |
| Mar 2026 | 684-76 | 663-77 |
| Feb 2026 | 760+25 | 740+21 |
| Jan 2026 | 735-10 | 719-9 |
| Dec 2025 | 745 | 728 |