USCF player statistics

Kowalczyk, Jakub J

USCF 15102785IllinoisUpdated: Nov 2026

Official US Chess record

Gender: Male
FIDE: FIDE 0
Floor: Regular 1,300 · Quick 1,200 · Blitz 100 · Online Regular 100 · Online Quick 100 · Online Blitz 100
Rated games: Blitz 16 · Online Regular 15 · Online Quick 22 · Online Blitz 25

US Chess record as of Sep 15, 2026

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Regular rating

1,5150 since Oct 2026

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

Nov 20261,515 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12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-206 Quick vs Regular
Typical for 1,500–1,599 regular players: -103 (middle half -186 to -48, 2,056 established members). This gap is below the typical range.
-96 Blitz vs Regular (provisional)
Typical for 1,500–1,599 regular players: -189 (middle half -317 to -61, 790 established members). This gap is within the typical range.
-81 Online Regular vs Regular (provisional)
Typical for 1,500–1,599 regular players: -345 (middle half -502 to -201, 237 established members). This gap is above the typical range.
-83 Online Quick vs Regular (provisional)
Typical for 1,500–1,599 regular players: -275 (middle half -491 to -106, 245 established members). This gap is above the typical range.
-57 Online Blitz vs Regular
Typical for 1,500–1,599 regular players: -66 (middle half -197 to +51, 189 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

#16,710of 83,032 rated members · higher than 79.8%

66,290 lower · 33 same rating · 16,709 higher · ties share a rank

Illinois

#710of 4,515 rated members · higher than 84.2%

3,805 lower · 1 same rating · 709 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,911 within 100 points of 1,515 (this player included)

Player · 1,515

01,4252,850

1,500–1,549: 1,881 members (2.2%) · highlighted band is the player’s · dashed line is the target

Target 1,550

81.2% below 1,550 (67,438 of 83,032; 79.8% below 1,515)

Percentile over time · United States

79.8% higher than · Nov 2026 · rank #16,710 of 83,032

Since Dec 2025
0 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 Kowalczyk, Jakub J
Month	Regular	Quick	Blitz	Online Regular	Online Quick	Online Blitz
Nov 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Oct 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Sep 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Aug 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Jul 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Jun 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
May 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Apr 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Mar 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Feb 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Jan 2026	1,515no change	1,309no change	1,419 Pno change · 16 games	1,434 Pno change · 15 games	1,432 Pno change · 22 games	1,458no change
Dec 2025	1,515	1,309	1,419 P16 games	1,434 P15 games	1,432 P22 games	1,458

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