USCF player statistics

Ws Clark, James

USCF 33187031CaliforniaLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

478

Provisional rating · Sep 2026 · 2 published updates since Aug 2026

Sep 2026478 provisional
Aug 2026: 518 provisionalSep 2026: 478 provisional
Aug 2026Sep 2026
2 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -2 Quick vs Regular (provisional)

    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
-40
Aug 2026 to Sep 2026
Longest rise
No consecutive gains yet
Updates that moved
1 of 1
Latest -40, Aug 2026 to Sep 2026
Typical move
±40
Mean absolute change per update

Regular rating in context

Sep 2026 update

United States

#59,995of 83,635 rated members · higher than 28.1%

23,582 lower · 59 same rating · 59,994 higher · ties share a rank

California

#6,767of 9,051 rated members · higher than 25.1%

2,278 lower · 7 same rating · 6,766 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,938 within 100 points of 478 (this player included)

Player · 478
01,4502,900

450499: 2,720 members (3.2%) · highlighted band is the player’s · dashed line is the target

29.6% below 500 (24,763 of 83,635; 28.1% below 478)

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 California 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 Ws Clark, James
MonthRegularQuick
Sep 2026478 P-40 · 4 games476 P-41 · 4 games
Aug 2026518 P4 games517 P4 games

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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.