USCF player statistics

Zarellas, Arthur

USCF 13231917CaliforniaUpdated: Nov 2026

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

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Rating format

Regular rating

8980 since Oct 2026

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

Nov 2026898 Regular
Dec 2025: 898Jan 2026: 898Feb 2026: 898Mar 2026: 898Apr 2026: 898May 2026: 898Jun 2026: 898Jul 2026: 898Aug 2026: 898Sep 2026: 898Oct 2026: 898Nov 2026: 898
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12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Other formats against Regular

  • +47 Quick vs Regular (provisional)

    No national baseline for this rating band yet.

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 Zarellas, Arthur
MonthRegularQuick
Nov 2026898no change945 Pno change · 9 games
Oct 2026898no change945 Pno change · 9 games
Sep 2026898no change945 Pno change · 9 games
Aug 2026898no change945 Pno change · 9 games
Jul 2026898no change945 Pno change · 9 games
Jun 2026898no change945 Pno change · 9 games
May 2026898no change945 Pno change · 9 games
Apr 2026898no change945 Pno change · 9 games
Mar 2026898no change945 Pno change · 9 games
Feb 2026898no change945 Pno change · 9 games
Jan 2026898no change945 Pno change · 9 games
Dec 2025898945 P9 games
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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.