USCF player statistics

Komaroff, David Harris

USCF 16604143New YorkUpdated: Nov 2026

US Chess membership expired on September 30, 2026. Published rating history is still shown below.

Join / Renew USCF
Official US Chess record

Enter an 8-digit USCF ID, or at least 3 letters of a name. Similar names in NY appear first.

Find USCF-rated tournamentsBrowse upcoming events and entry requirements.
Rating format

Regular rating

1,1420 since Oct 2026

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

Nov 20261,142 Regular
Dec 2025: 1062Jan 2026: 1062Feb 2026: 1062Mar 2026: 1062Apr 2026: 1062May 2026: 1062Jun 2026: 1142Jul 2026: 1142Aug 2026: 1143Sep 2026: 1142Oct 2026: 1142Nov 2026: 1142
Dec 2025Nov 2026
12 updates in this window · +80 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Other formats against Regular

  • -60 Quick vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+80
May 2026 to Jun 2026
Biggest drop
-1
Aug 2026 to Sep 2026
Longest rise
1 update
+80 from May 2026 to Jun 2026
Current run
2 updates
Unchanged since Sep 2026
Typical move
±7
Mean absolute change; spread ±24.1

Published ratings by month

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

Monthly USCF ratings for Komaroff, David Harris
MonthRegularQuick
Nov 20261,142no change1,082no change
Oct 20261,142no change1,082no change
Sep 20261,142-11,082no change
Aug 20261,143+11,082no change
Jul 20261,142no change1,082no change
Jun 20261,142+801,082+75
May 20261,062no change1,007no change
Apr 20261,062no change1,007no change
Mar 20261,062no change1,007no change
Feb 20261,062no change1,007no change
Jan 20261,062no change1,007no change
Dec 20251,0621,007
Chess67 DiscordChat with the Chess67 community.Open Find a chess tournamentUpcoming events near you.Browse Find a chess clubClubs and meetups near you.Browse

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.