USCF player statistics

Zavala, Mateo

USCF 31966683MichiganLatest monthly rating update: Sep 2026
Official US Chess record

Regular rating

823

Provisional rating · Sep 2026 · 10 published updates since Dec 2025

Sep 2026823 provisional
Dec 2025: 825 provisionalJan 2026: 825 provisionalFeb 2026: 825 provisionalMar 2026: 825 provisionalApr 2026: 825 provisionalMay 2026: 825 provisionalJun 2026: 825 provisionalJul 2026: 825 provisionalAug 2026: 825 provisionalSep 2026: 823 provisional
Dec 2025Sep 2026
10 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity
Overlays their published ratings on the chart; the link keeps the comparison.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
No gain between published updates yet
Biggest drop
-2
Aug 2026 to Sep 2026
Longest rise
No consecutive gains yet
Updates that moved
1 of 9
Latest -2, Aug 2026 to Sep 2026
Typical move
±0
Mean absolute change; spread ±0.7

Regular rating in context

Sep 2026 update

United States

49.2%of the comparison population has a lower rating.

41,154 lower · 39 same rating · 42,442 higher

Michigan

51.8%of the comparison population has a lower rating.

1,004 lower · 0 same rating · 931 higher

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 9,105 within 100 points of 823

Player · 823
01,4502,900

800849: 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; 49.2% below 823)

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.

United States statistics Michigan statistics

Published ratings by month

P marks a provisional rating; the small figure is the change since the previous published observation.

Monthly USCF ratings for Zavala, Mateo
MonthRegular
Sep 2026823 P-2 · 9 games
Aug 2026825 Pno change · 9 games
Jul 2026825 Pno change · 9 games
Jun 2026825 Pno change · 9 games
May 2026825 Pno change · 9 games
Apr 2026825 Pno change · 9 games
Mar 2026825 Pno change · 9 games
Feb 2026825 Pno change · 9 games
Jan 2026825 Pno change · 9 games
Dec 2025825 P9 games

Enter an 8-digit USCF ID, or at least 3 letters of a name. Similar names in MI appear first.

About these statistics. Built from the monthly USCF rating updates available to Chess67. Ratings change between publications, and a missing month is not inactivity. The official US Chess record has current ratings and tournament history.