USCF player statistics

Diaz, Marcelo A

USCF 31485616TexasLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

3830 since Aug 2026

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

Sep 2026383 Regular
Dec 2025: 242Jan 2026: 241Feb 2026: 382Mar 2026: 382Apr 2026: 383May 2026: 383Jun 2026: 383Jul 2026: 383Aug 2026: 383Sep 2026: 383
Dec 2025Sep 2026
10 updates in this window · +141 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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.

Other formats against Regular

  • +13 Quick vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+141
Jan 2026 to Feb 2026
Biggest drop
-1
Dec 2025 to Jan 2026
Longest rise
1 update
+141 from Jan 2026 to Feb 2026
Current run
5 updates
Unchanged since Apr 2026
Typical move
±16
Mean absolute change; spread ±47

Regular rating in context

Sep 2026 update

United States

#65,180of 83,635 rated members · higher than 22%

18,405 lower · 51 same rating · 65,179 higher · ties share a rank

Texas

#7,650of 10,810 rated members · higher than 29.1%

3,149 lower · 12 same rating · 7,649 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,810 within 100 points of 383 (this player included)

Player · 383
01,4502,900

350399: 2,689 members (3.2%) · highlighted band is the player’s · dashed line is the target

23% below 400 (19,308 of 83,635; 22% below 383)

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.

United States statistics Texas 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 Diaz, Marcelo A
MonthRegularQuick
Sep 2026383no change396no change
Aug 2026383no change396no change
Jul 2026383no change396no change
Jun 2026383no change396no change
May 2026383no change396no change
Apr 2026383+1396+1
Mar 2026382no change395no change
Feb 2026382+141395+142
Jan 2026241-1253no change
Dec 2025242253

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