USCF player statistics

Sianis, Sam

USCF 16224365IllinoisUpdated: Nov 2026

US Chess membership expired on January 31, 2026. Published rating history is still shown below.

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Rating format

Regular rating

559

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

Nov 2026559 provisional
Dec 2025: 559 provisionalJan 2026: 559 provisionalFeb 2026: 560 provisionalMar 2026: 560 provisionalApr 2026: 559 provisionalMay 2026: 559 provisionalJun 2026: 559 provisionalJul 2026: 559 provisionalAug 2026: 559 provisionalSep 2026: 559 provisionalOct 2026: 559 provisionalNov 2026: 559 provisional
Dec 2025Nov 2026
12 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Other formats against Regular

  • -3 Quick vs Regular (provisional)

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+1
Jan 2026 to Feb 2026
Biggest drop
-1
Mar 2026 to Apr 2026
Longest rise
1 update
+1 from Jan 2026 to Feb 2026
Current run
7 updates
Unchanged since Apr 2026
Typical move
±0
Mean absolute change; spread ±0.4

Published ratings by month

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

Monthly USCF ratings for Sianis, Sam
MonthRegularQuick
Nov 2026559 Pno change · 4 games556 Pno change · 4 games
Oct 2026559 Pno change · 4 games556 Pno change · 4 games
Sep 2026559 Pno change · 4 games556 Pno change · 4 games
Aug 2026559 Pno change · 4 games556 Pno change · 4 games
Jul 2026559 Pno change · 4 games556 Pno change · 4 games
Jun 2026559 Pno change · 4 games556 Pno change · 4 games
May 2026559 Pno change · 4 games556 Pno change · 4 games
Apr 2026559 P-1 · 4 games556 Pno change · 4 games
Mar 2026560 Pno change · 4 games556 Pno change · 4 games
Feb 2026560 P+1 · 4 games556 Pno change · 4 games
Jan 2026559 Pno change · 4 games556 Pno change · 4 games
Dec 2025559 P4 games556 P4 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.