USCF player statistics

Drum, Isaac

USCF 13900327MissouriUpdated: Nov 2026

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

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Rating format

Regular rating

1,5160 since Oct 2026

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

Nov 20261,516 Regular
Dec 2025: 1514Jan 2026: 1516Feb 2026: 1516Mar 2026: 1516Apr 2026: 1516May 2026: 1516Jun 2026: 1516Jul 2026: 1516Aug 2026: 1516Sep 2026: 1516Oct 2026: 1516Nov 2026: 1516
Dec 2025Nov 2026
12 updates in this window · +2 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Other formats against Regular

  • -135 Quick vs Regular

    No national baseline for this rating band yet.

  • -51 Blitz vs Regular

    No national baseline for this rating band yet.

  • -43 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
+2
Dec 2025 to Jan 2026
Biggest drop
—
No drop between published updates yet
Longest rise
1 update
+2 from Dec 2025 to Jan 2026
Current run
10 updates
Unchanged since Jan 2026
Typical move
±0
Mean absolute change; spread ±0.6

Published ratings by month

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

Monthly USCF ratings for Drum, Isaac
MonthRegularQuickBlitzOnline Quick
Nov 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Oct 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Sep 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Aug 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Jul 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Jun 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
May 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Apr 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Mar 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Feb 20261,516no change1,381no change1,465no change1,473 Pno change · 13 games
Jan 20261,516+21,381no change1,465no change1,473 Pno change · 13 games
Dec 20251,5141,3811,4651,473 P13 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.