USCF player statistics

Murtha, William K

USCF 30318852PennsylvaniaLatest monthly rating update: Sep 2026

FIDE: FIDE 0

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Regular rating

6740 since Aug 2026

Published rating · Sep 2026 · 10 published updates since Dec 2025

Sep 2026674 Regular

Compare format

Dec 2025Sep 2026

10 updates in this window · -110 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity

Compare with another playerOverlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

-29 Quick 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: -68; Feb 2026 to Mar 2026
Longest rise: —; No consecutive gains yet
Current run: 6 updates; Unchanged since Mar 2026
Typical move: ±12; Mean absolute change; spread ±25.1

Regular rating in context

Sep 2026 update

United States

#49,575of 83,635 rated members · higher than 40.6%

34,013 lower · 48 same rating · 49,574 higher · ties share a rank

Pennsylvania

#1,698of 2,639 rated members · higher than 35.6%

940 lower · 2 same rating · 1,697 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,093 within 100 points of 674 (this player included)

Player · 674

01,4502,900

650–699: 2,499 members (2.9%) · highlighted band is the player’s · dashed line is the target

Target 700

42.2% below 700 (35,335 of 83,635; 40.6% below 674)

How these comparisons are calculated

Chess67 calculations from the Sep 2026 monthly rating update, using the same population as the USCF statistics pages: US members classified as active in the published monthly records, excluding lifetime-coded records, provisional ratings included. Ties share a rank; “lower” is strictly lower; national and state groups overlap. The target explorer keeps the population fixed, with this player at their recorded rating: it is a rating comparison, not a prediction of future rank.

United States statistics Pennsylvania statistics

Published ratings by month

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

Monthly USCF ratings for Murtha, William K
Month	Regular	Quick
Sep 2026	674no change	645no change
Aug 2026	674no change	645no change
Jul 2026	674no change	645no change
Jun 2026	674no change	645no change
May 2026	674no change	645no change
Apr 2026	674no change	645no change
Mar 2026	674-68	645no change
Feb 2026	742-42	645-26
Jan 2026	784no change	671no change
Dec 2025	784	671