USCF player statistics

Khamanarong, Esther May

USCF 31474977ArizonaUpdated: Nov 2026

Official US Chess record

Gender: Female
FIDE: FIDE 0
Floor: Regular 147 · Quick 147

US Chess record as of Sep 16, 2026

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Regular rating

287+65 since Oct 2026

Published rating · Nov 2026 · 12 published updates since Dec 2025

Nov 2026287 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · +65 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-1 Quick vs Regular
Typical for 200–299 regular players: 0 (middle half -4 to +6, 798 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +65; Oct 2026 to Nov 2026
Biggest drop: —; No drop between published updates yet
Longest rise: 1 update; +65 from Oct 2026 to Nov 2026
Updates that moved: 1 of 11; Latest +65, Oct 2026 to Nov 2026
Typical move: ±6; Mean absolute change; spread ±19.6

Regular rating in context

Nov 2026 update

United States

#70,036of 83,032 rated members · higher than 15.5%

12,949 lower · 48 same rating · 70,035 higher · ties share a rank

Arizona

#1,460of 1,707 rated members · higher than 14.4%

247 lower · 1 same rating · 1,459 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,045 within 100 points of 287 (this player included)

Player · 287

01,4252,850

250–299: 2,467 members (2.9%) · highlighted band is the player’s · dashed line is the target

Target 300

16.3% below 300 (13,569 of 83,032; 15.5% below 287)

Percentile over time · United States

15.5% higher than · Nov 2026 · rank #70,036 of 83,032

Since Dec 2025
+3.3 pts

Dec 2025Nov 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 Nov 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 Arizona 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 Khamanarong, Esther May
Month	Regular	Quick
Nov 2026	287+65	286+64
Oct 2026	222no change	222no change
Sep 2026	222no change	222no change
Aug 2026	222no change	222no change
Jul 2026	222no change	222no change
Jun 2026	222no change	222no change
May 2026	222no change	222no change
Apr 2026	222no change	222no change
Mar 2026	222no change	222no change
Feb 2026	222no change	222no change
Jan 2026	222no change	222no change
Dec 2025	222	222

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