USCF player statistics

Vanderkolk, Ethan

USCF 15405072IllinoisUpdated: Nov 2026

Official US Chess record

Gender: Male
FIDE: FIDE 30945844
US Chess reported rank: #19,587 national · #844 in state
Floor: Regular 119 · Quick 100 · Blitz 100 · Online Regular 100
Rated games: Blitz 20

US Chess record as of Sep 15, 2026

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Regular rating

1,2500 since Oct 2026

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

Nov 20261,250 Regular

Compare format

Dec 2025Nov 2026

12 updates in this window · +282 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-329 Quick vs Regular
Typical for 1,200–1,299 regular players: -55 (middle half -112 to -18, 1,981 established members). This gap is below the typical range.
-509 Blitz vs Regular (provisional)
Typical for 1,200–1,299 regular players: -154 (middle half -306 to -39, 421 established members). This gap is below the typical range.
+3 Online Regular vs Regular
Typical for 1,200–1,299 regular players: -240 (middle half -454 to -99, 162 established members). This gap is above the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +282; Mar 2026 to Apr 2026
Biggest drop: —; No drop between published updates yet
Longest rise: 1 update; +282 from Mar 2026 to Apr 2026
Current run: 7 updates; Unchanged since Apr 2026
Typical move: ±26; Mean absolute change; spread ±85

Regular rating in context

Nov 2026 update

United States

#25,997of 83,032 rated members · higher than 68.6%

57,004 lower · 32 same rating · 25,996 higher · ties share a rank

Illinois

#1,142of 4,515 rated members · higher than 74.6%

3,372 lower · 2 same rating · 1,141 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,997 within 100 points of 1,250 (this player included)

Player · 1,250

01,4252,850

1,250–1,299: 1,654 members (1.9%) · highlighted band is the player’s · dashed line is the target

Target 1,300

70.6% below 1,300 (58,658 of 83,032; 68.6% below 1,250)

Percentile over time · United States

68.6% higher than · Nov 2026 · rank #25,997 of 83,032

Since Dec 2025
+12 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 Illinois 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 Vanderkolk, Ethan
Month	Regular	Quick	Blitz	Online Regular
Nov 2026	1,250no change	921no change	741 Pno change · 20 games	1,253no change
Oct 2026	1,250no change	921no change	741 Pno change · 20 games	1,253no change
Sep 2026	1,250no change	921no change	741 Pno change · 20 games	1,253no change
Aug 2026	1,250no change	921no change	741 Pno change · 20 games	1,253no change
Jul 2026	1,250no change	921no change	741 Pno change · 20 games	1,253no change
Jun 2026	1,250no change	921no change	741 Pno change · 20 games	1,253no change
May 2026	1,250no change	921no change	741 Pno change · 20 games	1,253no change
Apr 2026	1,250+282	921no change	741 Pno change · 20 games	1,253no change
Mar 2026	968no change	921no change	741 Pno change · 20 games	1,253no change
Feb 2026	968no change	921no change	741 Pno change · 20 games	1,253no change
Jan 2026	968no change	921no change	741 Pno change · 20 games	1,253no change
Dec 2025	968	921	741 P20 games	1,253

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