USCF player statistics

Sun, Alex

USCF 31645948CaliforniaLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

8230 since Aug 2026

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

Sep 2026823 Regular
Dec 2025: 539 provisionalJan 2026: 573 provisionalFeb 2026: 563Mar 2026: 716Apr 2026: 715May 2026: 720Jun 2026: 720Jul 2026: 823Aug 2026: 823Sep 2026: 823
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10 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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.

Other formats against Regular

  • -4 Quick vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+153
Feb 2026 to Mar 2026
Biggest drop
-10
Jan 2026 to Feb 2026
Longest rise
1 update
+153 from Feb 2026 to Mar 2026
Current run
2 updates
Unchanged since Jul 2026
Typical move
±34
Mean absolute change; spread ±57.4

Regular rating in context

Sep 2026 update

United States

#42,443of 83,635 rated members · higher than 49.2%

41,154 lower · 39 same rating · 42,442 higher · ties share a rank

California

#4,888of 9,051 rated members · higher than 45.9%

4,160 lower · 4 same rating · 4,887 higher · ties share a rank

Where this rating sits · United States

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

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, 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 Sun, Alex
MonthRegularQuick
Sep 2026823no change819no change
Aug 2026823no change819no change
Jul 2026823+103819+101
Jun 2026720no change718no change
May 2026720+5718no change
Apr 2026715-1718no change
Mar 2026716+153718+157
Feb 2026563-10561-9
Jan 2026573 P+34 · 24 games570 P+31 · 24 games
Dec 2025539 P19 games539 P19 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.