USCF player statistics

Williams, Gregory Arthur

USCF 30017634PennsylvaniaLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

6200 since Aug 2026

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

Sep 2026620 Regular
Dec 2025: 279Jan 2026: 368Feb 2026: 489Mar 2026: 490Apr 2026: 598May 2026: 649Jun 2026: 621Jul 2026: 620Aug 2026: 620Sep 2026: 620
Dec 2025Sep 2026
10 updates in this window · +341 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity
Overlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

  • -15 Quick vs Regular

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+121
Jan 2026 to Feb 2026
Biggest drop
-28
May 2026 to Jun 2026
Longest rise
5 updates
+370 from Dec 2025 to May 2026
Current run
2 updates
Unchanged since Jul 2026
Typical move
±44
Mean absolute change; spread ±55.6

Regular rating in context

Sep 2026 update

United States

#52,295of 83,635 rated members · higher than 37.3%

31,278 lower · 63 same rating · 52,294 higher · ties share a rank

Pennsylvania

#1,780of 2,639 rated members · higher than 32.4%

856 lower · 4 same rating · 1,779 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,462 within 100 points of 620 (this player included)

Player · 620
01,4502,900

600649: 2,641 members (3.1%) · highlighted band is the player’s · dashed line is the target

39.2% below 650 (32,836 of 83,635; 37.3% below 620)

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 Williams, Gregory Arthur
MonthRegularQuick
Sep 2026620no change605no change
Aug 2026620no change605no change
Jul 2026620-1605+2
Jun 2026621-28603-37
May 2026649+51640+51
Apr 2026598+108589+107
Mar 2026490+1482+1
Feb 2026489+121481+122
Jan 2026368+89359+90
Dec 2025279269

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

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.