USCF player statistics

Chen, Naomi

USCF 32384102OregonUpdated: Nov 2026
Official US Chess record

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Gender
Female
US Chess reported rank
#32,563 national · #521 in state
Floor
Regular 150 · Quick 150

US Chess record as of Sep 17, 2026

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Rating format

Regular rating

999+128 since Oct 2026

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

Nov 2026999 Regular
Dec 2025: 967 provisionalJan 2026: 967 provisionalFeb 2026: 967 provisionalMar 2026: 967 provisionalApr 2026: 912 provisionalMay 2026: 829 provisionalJun 2026: 837 provisionalJul 2026: 876Aug 2026: 876Sep 2026: 871Oct 2026: 871Nov 2026: 999
Dec 2025Nov 2026
12 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • 0 Quick vs Regular

    Typical for 900–999 regular players: -19 (middle half -47 to +3, 2,371 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+128
Oct 2026 to Nov 2026
Biggest drop
-83
Apr 2026 to May 2026
Longest rise
2 updates
+47 from May 2026 to Jul 2026
Updates that moved
6 of 11
Latest +128, Oct 2026 to Nov 2026
Typical move
±29
Mean absolute change; spread ±52.7

Regular rating in context

Nov 2026 update

United States

#35,180of 83,032 rated members · higher than 57.5%

47,810 lower · 43 same rating · 35,179 higher · ties share a rank

Oregon

#539of 1,501 rated members · higher than 64%

962 lower · 1 same rating · 538 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 8,056 within 100 points of 999 (this player included)

Player · 999
01,4252,850

950–999: 2,025 members (2.4%) · highlighted band is the player’s · dashed line is the target

57.6% below 1,000 (47,853 of 83,032; 57.5% below 999)

Percentile over time · United States

57.5% higher than · Nov 2026 · rank #35,180 of 83,032

Since Dec 2025
+1 pts

Dec 2025: higher than 56.5% (rank 35,199 of 81,102)Jan 2026: higher than 56% (rank 34,885 of 79,487)Feb 2026: higher than 56.3% (rank 36,642 of 83,940)Mar 2026: higher than 55.9% (rank 35,491 of 80,605)Apr 2026: higher than 53.3% (rank 37,698 of 80,831)May 2026: higher than 48.8% (rank 41,480 of 81,236)Jun 2026: higher than 49.9% (rank 41,651 of 83,290)Jul 2026: higher than 52.2% (rank 39,432 of 82,736)Aug 2026: higher than 52.1% (rank 39,698 of 83,080)Sep 2026: higher than 51.7% (rank 40,263 of 83,635)Oct 2026: higher than 51.2% (rank 40,181 of 82,596)Nov 2026: higher than 57.5% (rank 35,180 of 83,032)
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 Oregon 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 Chen, Naomi
MonthRegularQuick
Nov 2026999+128999+135
Oct 2026871no change864no change
Sep 2026871-5864-4
Aug 2026876no change868no change
Jul 2026876+39868+35
Jun 2026837 P+8 · 23 games833 P+7 · 23 games
May 2026829 P-83 · 23 games826 P-84 · 23 games
Apr 2026912 P-55 · 19 games910 P-52 · 19 games
Mar 2026967 Pno change · 15 games962 Pno change · 15 games
Feb 2026967 Pno change · 15 games962 Pno change · 15 games
Jan 2026967 Pno change · 15 games962 Pno change · 15 games
Dec 2025967 P15 games962 P15 games
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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.