USCF player statistics
Zamudio, Rey
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-94 Quick vs Regular
No national baseline for this rating band yet.
-519 Blitz vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +55
- Mar 2026 to Apr 2026
- Biggest drop
- -72
- Jan 2026 to Feb 2026
- Longest rise
- 2 updates
- +58 from Feb 2026 to Apr 2026
- Current run
- 1 update
- Unchanged since Aug 2026
- Typical move
- ±21
- Mean absolute change; spread ±36.4
Regular rating in context
United States
#6,087of 83,635 rated members · higher than 92.6%
77,521 lower · 28 same rating · 6,086 higher · ties share a rank
Arizona
#155of 1,686 rated members · higher than 90.8%
1,531 lower · 1 same rating · 154 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 4,914 within 100 points of 1,856 (this player included)
1,850–1,899: 1,069 members (1.2%) · highlighted band is the player’s · dashed line is the target
93.8% below 1,900 (78,459 of 83,635; 92.6% below 1,856)
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 | 1,856no change | 1,762no change | 1,337no change |
| Aug 2026 | 1,856+49 | 1,762+72 | 1,337no change |
| Jul 2026 | 1,807no change | 1,690no change | 1,337no change |
| Jun 2026 | 1,807-9 | 1,690-18 | 1,337no change |
| May 2026 | 1,816no change | 1,708no change | 1,337no change |
| Apr 2026 | 1,816+55 | 1,708+48 | 1,337no change |
| Mar 2026 | 1,761+3 | 1,660-13 | 1,337no change |
| Feb 2026 | 1,758-72 | 1,673-70 | 1,337+212 |
| Jan 2026 | 1,830no change | 1,743no change | 1,125no change |
| Dec 2025 | 1,830 | 1,743 | 1,125 |