USCF player statistics

Yin, Ellery M

USCF 32245970CaliforniaLatest monthly rating update: Sep 2026

FIDE: FIDE 0

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Regular rating

494-71 since Aug 2026

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

Sep 2026494 Regular

Compare format

Dec 2025Sep 2026

10 updates in this window · +86 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Compare with another playerOverlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

-31 Quick vs Regular
No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +224; Apr 2026 to May 2026
Biggest drop: -188; May 2026 to Jun 2026
Longest rise: 3 updates; +202 from Dec 2025 to Mar 2026
Updates that moved: 9 of 9; Latest -71, Aug 2026 to Sep 2026
Typical move: ±89; Mean absolute change; spread ±120.4

Regular rating in context

Sep 2026 update

United States

#59,125of 83,635 rated members · higher than 29.2%

24,461 lower · 50 same rating · 59,124 higher · ties share a rank

California

#6,687of 9,051 rated members · higher than 26%

2,357 lower · 8 same rating · 6,686 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,977 within 100 points of 494 (this player included)

Player · 494

01,4502,900

450–499: 2,720 members (3.2%) · highlighted band is the player’s · dashed line is the target

Target 500

29.6% below 500 (24,763 of 83,635; 29.2% below 494)

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 Yin, Ellery M
Month	Regular	Quick
Sep 2026	494-71	463-66
Aug 2026	565+18	529+23
Jul 2026	547-16	506+79
Jun 2026	563-188	427-92
May 2026	751+224	519no change
Apr 2026	527-83	519-84
Mar 2026	610+30	603+30
Feb 2026	580+47	573+42
Jan 2026	533+125	531+120
Dec 2025	408	411