USCF player statistics

Deng, Zerui

USCF 32204784CaliforniaLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

609-47 since Aug 2026

Published rating · Sep 2026 · 9 published updates since Jan 2026

Sep 2026609 Regular
Jan 2026: 159 provisionalFeb 2026: 159 provisionalMar 2026: 159 provisionalApr 2026: 159 provisionalMay 2026: 398 provisionalJun 2026: 488Jul 2026: 488Aug 2026: 656Sep 2026: 609
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10 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -48 Quick vs Regular (provisional)

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+239
Apr 2026 to May 2026
Biggest drop
-47
Aug 2026 to Sep 2026
Longest rise
2 updates
+329 from Apr 2026 to Jun 2026
Updates that moved
4 of 8
Latest -47, Aug 2026 to Sep 2026
Typical move
±68
Mean absolute change; spread ±100.2

Regular rating in context

Sep 2026 update

United States

#52,888of 83,635 rated members · higher than 36.7%

30,705 lower · 43 same rating · 52,887 higher · ties share a rank

California

#6,018of 9,051 rated members · higher than 33.4%

3,027 lower · 7 same rating · 6,017 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,561 within 100 points of 609 (this player included)

Player · 609
01,4502,900

600649: 2,641 members (3.1%) · highlighted band is the player’s · dashed line is the target

39.2% below 650 (32,836 of 83,635; 36.7% below 609)

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 Deng, Zerui
MonthRegularQuick
Sep 2026609-47561 P-35 · 20 games
Aug 2026656+168596 P+304 · 15 games
Jul 2026488no change292 Pno change · 10 games
Jun 2026488+90292 P+138 · 10 games
May 2026398 P+239 · 21 games154 Pno change · 5 games
Apr 2026159 Pno change · 5 games154 Pno change · 5 games
Mar 2026159 Pno change · 5 games154 Pno change · 5 games
Feb 2026159 Pno change · 5 games154 Pno change · 5 games
Jan 2026159 P5 games154 P5 games
Dec 2025

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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.