USCF player statistics

Karachunsky, Isaac Michael

USCF 13741720VirginiaUpdated: Nov 2026

Official US Chess record

Gender: Male
US Chess reported rank: #7,169 national · #230 in state
Floor: Regular 1,500 · Quick 1,300 · Blitz 100
Rated games: Blitz 20

US Chess record as of Sep 15, 2026

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Regular rating

1,7280 since Oct 2026

Published rating · Nov 2026 · 11 published updates since Jan 2026

Nov 20261,728 Regular

Compare format

Jan 2026Nov 2026

11 updates in this window · +4 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-242 Quick vs Regular
Typical for 1,700–1,799 regular players: -125 (middle half -210 to -72, 1,916 established members). This gap is below the typical range.
-105 Blitz vs Regular (provisional)
Typical for 1,700–1,799 regular players: -218 (middle half -343 to -100, 926 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +4; Jan 2026 to Feb 2026
Biggest drop: —; No drop between published updates yet
Longest rise: 1 update; +4 from Jan 2026 to Feb 2026
Current run: 9 updates; Unchanged since Feb 2026
Typical move: ±0; Mean absolute change; spread ±1.3

Regular rating in context

Nov 2026 update

United States

#9,646of 83,032 rated members · higher than 88.3%

73,366 lower · 21 same rating · 9,645 higher · ties share a rank

Virginia

#343of 2,592 rated members · higher than 86.7%

2,249 lower · 1 same rating · 342 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,082 within 100 points of 1,728 (this player included)

Player · 1,728

01,4252,850

1,700–1,749: 1,646 members (1.9%) · highlighted band is the player’s · dashed line is the target

Target 1,750

89% below 1,750 (73,935 of 83,032; 88.3% below 1,728)

Percentile over time · United States

88.3% higher than · Nov 2026 · rank #9,646 of 83,032

Since Jan 2026
+0.4 pts

Jan 2026Nov 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 Virginia 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 Karachunsky, Isaac Michael
Month	Regular	Quick	Blitz
Nov 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Oct 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Sep 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Aug 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Jul 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Jun 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
May 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Apr 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Mar 2026	1,728no change	1,486no change	1,623 Pno change · 20 games
Feb 2026	1,728+4	1,486+13	1,623 Pno change · 20 games
Jan 2026	1,724	1,473	1,623 P20 games

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