USCF player statistics

Guo, Charles

USCF 16814605CaliforniaUpdated: Oct 2026

US Chess membership expired on October 31, 2023. Published rating history is still shown below.

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Rating format

Regular rating

1,0540 since Sep 2026

Published rating · Oct 2026 · 11 published updates since Dec 2025

Oct 20261,054 Regular
Dec 2025: 1054Jan 2026: 1054Feb 2026: 1054Mar 2026: 1054Apr 2026: 1054May 2026: 1054Jun 2026: 1054Jul 2026: 1054Aug 2026: 1054Sep 2026: 1054Oct 2026: 1054
Dec 2025Oct 2026
11 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -39 Quick vs Regular

    No national baseline for this rating band yet.

  • +353 Online Regular vs Regular

    No national baseline for this rating band yet.

  • +196 Online Quick vs Regular

    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
10 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 Guo, Charles
MonthRegularQuickOnline RegularOnline Quick
Oct 20261,054no change1,015no change1,407no change1,250no change
Sep 20261,054no change1,015no change1,407no change1,250no change
Aug 20261,054no change1,015no change1,407no change1,250no change
Jul 20261,054no change1,015no change1,407no change1,250no change
Jun 20261,054no change1,015no change1,407no change1,250no change
May 20261,054no change1,015no change1,407no change1,250no change
Apr 20261,054no change1,015no change1,407no change1,250no change
Mar 20261,054no change1,015no change1,407no change1,250no change
Feb 20261,054no change1,015no change1,407no change1,250no change
Jan 20261,054no change1,015no change1,407no change1,250no change
Dec 20251,0541,0151,4071,250
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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.