USCF player statistics

Jacoby, Piper

USCF 16190417New YorkUpdated: Nov 2026

US Chess membership expired on April 30, 2024. Published rating history is still shown below.

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Rating format

Regular rating

9010 since Oct 2026

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

Nov 2026901 Regular
Dec 2025: 901Jan 2026: 901Feb 2026: 901Mar 2026: 901Apr 2026: 901May 2026: 901Jun 2026: 901Jul 2026: 850Aug 2026: 850Sep 2026: 901Oct 2026: 901Nov 2026: 901
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12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -104 Quick vs Regular

    No national baseline for this rating band yet.

  • -260 Blitz vs Regular (provisional)

    No national baseline for this rating band yet.

  • -76 Online Quick vs Regular (provisional)

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+51
Aug 2026 to Sep 2026
Biggest drop
-51
Jun 2026 to Jul 2026
Longest rise
1 update
+51 from Aug 2026 to Sep 2026
Current run
2 updates
Unchanged since Sep 2026
Typical move
±9
Mean absolute change; spread ±22.8

Published ratings by month

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

Monthly USCF ratings for Jacoby, Piper
MonthRegularQuickBlitzOnline Quick
Nov 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
Oct 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
Sep 2026901+51797no change641 Pno change · 22 games825 Pno change · 14 games
Aug 2026850no change797no change641 Pno change · 22 games825 Pno change · 14 games
Jul 2026850-51797no change641 Pno change · 22 games825 Pno change · 14 games
Jun 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
May 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
Apr 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
Mar 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
Feb 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
Jan 2026901no change797no change641 Pno change · 22 games825 Pno change · 14 games
Dec 2025901797641 P22 games825 P14 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.