USCF player statistics

Wiezorek, Jeff

USCF 15475517CaliforniaUpdated: Nov 2026

US Chess membership expired on January 31, 2024. Published rating history is still shown below.

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Rating format

Regular rating

8380 since Oct 2026

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

Nov 2026838 Regular
Dec 2025: 838Jan 2026: 838Feb 2026: 838Mar 2026: 838Apr 2026: 838May 2026: 838Jun 2026: 838Jul 2026: 838Aug 2026: 838Sep 2026: 838Oct 2026: 838Nov 2026: 838
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12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

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

Published ratings by month

P marks a provisional rating; the small figure is the change since the previous published observation.

Monthly USCF ratings for Wiezorek, Jeff
MonthRegular
Nov 2026838no change
Oct 2026838no change
Sep 2026838no change
Aug 2026838no change
Jul 2026838no change
Jun 2026838no change
May 2026838no change
Apr 2026838no change
Mar 2026838no change
Feb 2026838no change
Jan 2026838no change
Dec 2025838
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About these statistics. Built from the monthly USCF rating updates available to Chess67. Ratings change between publications, and a missing month is not inactivity. The official US Chess record has current ratings and tournament history.