USCF player statistics

Dey, Soumili

USCF 30237854MassachusettsUpdated: Oct 2026

Official US Chess record

Gender: Female
FIDE: FIDE 39918866
US Chess reported rank: #5,457 national · #204 in state
Floor: Regular 1,600 · Quick 1,400 · Blitz 1,300

US Chess record as of Sep 15, 2026

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Regular rating

1,847+34 since Sep 2026

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

Oct 20261,847 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · +234 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-272 Quick vs Regular
Typical for 1,800–1,899 regular players: -129 (middle half -222 to -74, 1,817 established members). This gap is below the typical range.
-333 Blitz vs Regular
Typical for 1,800–1,899 regular players: -213 (middle half -343 to -99, 1,009 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +103; Jan 2026 to Feb 2026
Biggest drop: -54; May 2026 to Jun 2026
Longest rise: 3 updates; +203 from Dec 2025 to Mar 2026
Updates that moved: 10 of 10; Latest +34, Sep 2026 to Oct 2026
Typical move: ±37; Mean absolute change; spread ±43.8

Regular rating in context

Oct 2026 update

United States

#6,327of 82,596 rated members · higher than 92.3%

76,253 lower · 17 same rating · 6,326 higher · ties share a rank

Massachusetts

#250of 1,673 rated members · higher than 85%

1,423 lower · 1 same rating · 249 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 5,011 within 100 points of 1,847 (this player included)

Player · 1,847

01,4502,900

1,800–1,849: 1,584 members (1.9%) · highlighted band is the player’s · dashed line is the target

Target 1,850

92.4% below 1,850 (76,326 of 82,596; 92.3% below 1,847)

Percentile over time · United States

92.3% higher than · Oct 2026 · rank #6,327 of 82,596

Since Dec 2025
+8.5 pts

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 Massachusetts 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 Dey, Soumili
Month	Regular	Quick	Blitz
Oct 2026	1,847+34	1,575no change	1,514no change
Sep 2026	1,813+18	1,575no change	1,514no change
Aug 2026	1,795-9	1,575-7	1,514no change
Jul 2026	1,804+47	1,582no change	1,514no change
Jun 2026	1,757-54	1,582-10	1,514+1
May 2026	1,811+1	1,592no change	1,513no change
Apr 2026	1,810-6	1,592-40	1,513no change
Mar 2026	1,816+64	1,632+89	1,513no change
Feb 2026	1,752+103	1,543no change	1,513no change
Jan 2026	1,649+36	1,543+57	1,513no change
Dec 2025	1,613	1,486	1,513

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