USCF player statistics

Ambartsoumian, Allen

USCF 16537721CaliforniaUpdated: Nov 2026

Official US Chess record

Gender: Male
FIDE: FIDE 0
US Chess reported rank: #32,339 national · #1,807 in state
Floor: Regular 150 · Quick 150

US Chess record as of Sep 15, 2026

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Regular rating

897+21 since Oct 2026

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

Nov 2026897 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · +39 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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
Typical for 800–899 regular players: -11 (middle half -31 to +8, 2,426 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +21; Oct 2026 to Nov 2026
Biggest drop: —; No drop between published updates yet
Longest rise: 1 update; +21 from Oct 2026 to Nov 2026
Updates that moved: 2 of 11; Latest +21, Oct 2026 to Nov 2026
Typical move: ±4; Mean absolute change; spread ±7.9

Regular rating in context

Nov 2026 update

United States

#39,471of 83,032 rated members · higher than 52.4%

43,525 lower · 37 same rating · 39,470 higher · ties share a rank

California

#4,659of 9,288 rated members · higher than 49.7%

4,624 lower · 6 same rating · 4,658 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 8,697 within 100 points of 897 (this player included)

Player · 897

01,4252,850

850–899: 2,146 members (2.5%) · highlighted band is the player’s · dashed line is the target

Target 900

52.5% below 900 (43,657 of 83,032; 52.4% below 897)

Percentile over time · United States

52.4% higher than · Nov 2026 · rank #39,471 of 83,032

Since Dec 2025
+1.4 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 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 Ambartsoumian, Allen
Month	Regular	Quick
Nov 2026	897+21	866+24
Oct 2026	876no change	842no change
Sep 2026	876no change	842no change
Aug 2026	876no change	842no change
Jul 2026	876no change	842no change
Jun 2026	876no change	842no change
May 2026	876no change	842no change
Apr 2026	876+18	842+16
Mar 2026	858no change	826no change
Feb 2026	858no change	826no change
Jan 2026	858no change	826no change
Dec 2025	858	826

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