USCF player statistics

Yin, Ellery M

USCF 32245970CaliforniaUpdated: Oct 2026
Official US Chess record

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Gender
Female
FIDE
FIDE 0
US Chess reported rank
#50,236 national · #2,566 in state
Floor
Regular 150 · Quick 150

US Chess record as of Sep 17, 2026

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Rating format

Regular rating

4940 since Sep 2026

Published rating · Oct 2026 · 11 published updates since Dec 2025

Oct 2026494 Regular
Dec 2025: 408Jan 2026: 533Feb 2026: 580Mar 2026: 610Apr 2026: 527May 2026: 751Jun 2026: 563Jul 2026: 547Aug 2026: 565Sep 2026: 494Oct 2026: 494
Dec 2025Oct 2026
11 updates in this window · +86 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -31 Quick vs Regular

    Typical for 400–499 regular players: -1 (middle half -9 to +7, 1,658 established members). This gap is below the typical range.

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
Current run
1 update
Unchanged since Sep 2026
Typical move
±80
Mean absolute change; spread ±113.5

Regular rating in context

Oct 2026 update

United States

#58,660of 82,596 rated members · higher than 28.9%

23,892 lower · 45 same rating · 58,659 higher · ties share a rank

California

#6,747of 9,083 rated members · higher than 25.6%

2,330 lower · 7 same rating · 6,746 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 10,675 within 100 points of 494 (this player included)

Player · 494
01,4502,900

450–499: 2,645 members (3.2%) · highlighted band is the player’s · dashed line is the target

29.2% below 500 (24,177 of 82,596; 28.9% below 494)

Percentile over time · United States

28.9% higher than · Oct 2026 · rank #58,660 of 82,596

Since Dec 2025
+5.2 pts

Dec 2025: higher than 23.7% (rank 61,770 of 81,102)Jan 2026: higher than 31.3% (rank 54,491 of 79,487)Feb 2026: higher than 34.5% (rank 54,917 of 83,940)Mar 2026: higher than 36% (rank 51,480 of 80,605)Apr 2026: higher than 30.9% (rank 55,738 of 80,831)May 2026: higher than 44.5% (rank 45,018 of 81,236)Jun 2026: higher than 33.7% (rank 55,103 of 83,290)Jul 2026: higher than 32.9% (rank 55,442 of 82,736)Aug 2026: higher than 34% (rank 54,749 of 83,080)Sep 2026: higher than 29.2% (rank 59,125 of 83,635)Oct 2026: higher than 28.9% (rank 58,660 of 82,596)
Dec 2025Oct 2026
Each month against that month’s active pool, so pool growth and rating drift both count.
How these comparisons are calculated

Chess67 calculations from the Oct 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
MonthRegularQuick
Oct 2026494no change463no change
Sep 2026494-71463-66
Aug 2026565+18529+23
Jul 2026547-16506+79
Jun 2026563-188427-92
May 2026751+224519no change
Apr 2026527-83519-84
Mar 2026610+30603+30
Feb 2026580+47573+42
Jan 2026533+125531+120
Dec 2025408411
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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.