USCF player statistics

Mackinnon, Keith

USCF 13205383Updated: Nov 2026

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

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Rating format

Regular rating

2,1390 since Oct 2026

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

Nov 20262,139 Regular
Dec 2025: 2138Jan 2026: 2138Feb 2026: 2138Mar 2026: 2138Apr 2026: 2138May 2026: 2138Jun 2026: 2138Jul 2026: 2138Aug 2026: 2138Sep 2026: 2139Oct 2026: 2139Nov 2026: 2139
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12 updates in this window · +1 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -234 Quick vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+1
Aug 2026 to Sep 2026
Biggest drop
—
No drop between published updates yet
Longest rise
1 update
+1 from Aug 2026 to Sep 2026
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 Mackinnon, Keith
MonthRegularQuick
Nov 20262,139no change1,905no change
Oct 20262,139no change1,905no change
Sep 20262,139+11,905no change
Aug 20262,138no change1,905no change
Jul 20262,138no change1,905no change
Jun 20262,138no change1,905no change
May 20262,138no change1,905no change
Apr 20262,138no change1,905no change
Mar 20262,138no change1,905no change
Feb 20262,138no change1,905no change
Jan 20262,138no change1,905no change
Dec 20252,1381,905
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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.