USCF player statistics

Haar, Isaac Jeffrey

USCF 16501145IllinoisUpdated: Nov 2026

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

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Rating format

Regular rating

1,6710 since Oct 2026

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

Nov 20261,671 Regular
Dec 2025: 1671Jan 2026: 1671Feb 2026: 1671Mar 2026: 1671Apr 2026: 1671May 2026: 1671Jun 2026: 1671Jul 2026: 1671Aug 2026: 1671Sep 2026: 1671Oct 2026: 1671Nov 2026: 1671
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12 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • +93 Quick vs Regular

    No national baseline for this rating band yet.

  • -132 Blitz 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
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 Haar, Isaac Jeffrey
MonthRegularQuickBlitz
Nov 20261,671no change1,764no change1,539no change
Oct 20261,671no change1,764no change1,539no change
Sep 20261,671no change1,764no change1,539no change
Aug 20261,671no change1,764no change1,539no change
Jul 20261,671no change1,764no change1,539no change
Jun 20261,671no change1,764no change1,539no change
May 20261,671no change1,764no change1,539no change
Apr 20261,671no change1,764no change1,539no change
Mar 20261,671no change1,764no change1,539no change
Feb 20261,671no change1,764-61,539no change
Jan 20261,671no change1,770+471,539no change
Dec 20251,6711,7231,539
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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.