USCF player statistics

Piryatinsky, Mark

USCF 16388502MassachusettsUpdated: Nov 2026

Official US Chess record

Gender: Male
FIDE: FIDE 0
Floor: Regular 1,200 · Quick 150 · Online Regular 100 · Online Quick 100
Rated games: Online Quick 23

US Chess record as of Sep 15, 2026

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Regular rating

1,4580 since Oct 2026

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

Nov 20261,458 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-131 Quick vs Regular
Typical for 1,400–1,499 regular players: -85 (middle half -160 to -36, 2,037 established members). This gap is within the typical range.
-282 Online Regular vs Regular
Typical for 1,400–1,499 regular players: -310 (middle half -476 to -158, 204 established members). This gap is within the typical range.
-173 Online Quick vs Regular (provisional)
Typical for 1,400–1,499 regular players: -222 (middle half -449 to -58, 212 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: —; No gain between published updates yet
Biggest drop: —; No drop between published updates yet
Longest rise: —; No consecutive gains yet
Current run: 11 updates; Unchanged since Dec 2025
Typical move: ±0; Mean absolute change; spread ±0

Regular rating in context

Nov 2026 update

United States

#18,763of 83,032 rated members · higher than 77.3%

64,238 lower · 32 same rating · 18,762 higher · ties share a rank

Massachusetts

#656of 1,698 rated members · higher than 61.3%

1,042 lower · 1 same rating · 655 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,994 within 100 points of 1,458 (this player included)

Player · 1,458

01,4252,850

1,450–1,499: 1,566 members (1.8%) · highlighted band is the player’s · dashed line is the target

Target 1,500

78.9% below 1,500 (65,557 of 83,032; 77.3% below 1,458)

Percentile over time · United States

77.3% higher than · Nov 2026 · rank #18,763 of 83,032

Since Dec 2025
-0.1 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 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 Piryatinsky, Mark
Month	Regular	Quick	Online Regular	Online Quick
Nov 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Oct 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Sep 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Aug 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Jul 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Jun 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
May 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Apr 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Mar 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Feb 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Jan 2026	1,458no change	1,327no change	1,176no change	1,285 Pno change · 23 games
Dec 2025	1,458	1,327	1,176	1,285 P23 games

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