USCF player statistics

O'Shaughnessy, Brendan

USCF 12955751IllinoisUpdated: Nov 2026

US Chess membership expired on February 29, 2024. Published rating history is still shown below.

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Rating format

Regular rating

1,7380 since Oct 2026

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

Nov 20261,738 Regular
Dec 2025: 1739Jan 2026: 1739Feb 2026: 1739Mar 2026: 1739Apr 2026: 1739May 2026: 1739Jun 2026: 1739Jul 2026: 1739Aug 2026: 1739Sep 2026: 1738Oct 2026: 1738Nov 2026: 1738
Dec 2025Nov 2026
12 updates in this window · -1 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Other formats against Regular

  • +44 Quick vs Regular (provisional)

    No national baseline for this rating band yet.

  • -48 Blitz vs Regular (provisional)

    No national baseline for this rating band yet.

  • -110 Online Quick vs Regular (provisional)

    No national baseline for this rating band yet.

  • -61 Online 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
-1
Aug 2026 to Sep 2026
Longest rise
—
No consecutive gains yet
Current run
2 updates
Unchanged since Sep 2026
Typical move
±0
Mean absolute change; spread ±0.3

Published ratings by month

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

Monthly USCF ratings for O'Shaughnessy, Brendan
MonthRegularQuickBlitzOnline QuickOnline Blitz
Nov 20261,738no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Oct 20261,738no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Sep 20261,738-11,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Aug 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Jul 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Jun 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
May 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Apr 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Mar 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Feb 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Jan 20261,739no change1,782 Pno change · 16 games1,690 Pno change · 22 games1,628 Pno change · 11 games1,677no change
Dec 20251,7391,782 P16 games1,690 P22 games1,628 P11 games1,677
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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.