USCF player statistics

Ma, Thomas

USCF 32041249CaliforniaLatest monthly rating update: Sep 2026
Official US Chess record

Blitz rating

631

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

Sep 2026631 provisional
Dec 2025: 647 provisionalJan 2026: 647 provisionalFeb 2026: 647 provisionalMar 2026: 647 provisionalApr 2026: 647 provisionalMay 2026: 631 provisionalJun 2026: 631 provisionalJul 2026: 631 provisionalAug 2026: 631 provisionalSep 2026: 631 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10 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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
-16
Apr 2026 to May 2026
Longest rise
No consecutive gains yet
Current run
4 updates
Unchanged since May 2026
Typical move
±2
Mean absolute change; spread ±5.3

Blitz rating in context

Sep 2026 update

United States

#16,393of 19,355 rated members · higher than 15.2%

2,956 lower · 7 same rating · 16,392 higher · ties share a rank

California

#2,038of 2,569 rated members · higher than 20.6%

531 lower · 1 same rating · 2,037 higher · ties share a rank

Where this rating sits · United States

19,355 rated members in 50-point bands · median 1,200–1,249 · 1,785 within 100 points of 631 (this player included)

Player · 631
01,4752,950

600649: 445 members (2.2%) · highlighted band is the player’s · dashed line is the target

16.1% below 650 (3,124 of 19,355; 15.2% below 631)

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 California 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 Ma, Thomas
MonthBlitz
Sep 2026631 Pno change · 21 games
Aug 2026631 Pno change · 21 games
Jul 2026631 Pno change · 21 games
Jun 2026631 Pno change · 21 games
May 2026631 P-16 · 21 games
Apr 2026647 Pno change · 18 games
Mar 2026647 Pno change · 18 games
Feb 2026647 Pno change · 18 games
Jan 2026647 Pno change · 18 games
Dec 2025647 P18 games

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