USCF player statistics

Peterson, Whitman Louis

USCF 30530638CaliforniaLatest monthly rating update: Sep 2026
Official US Chess record
Rating format

Regular rating

1,0650 since Aug 2026

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

Sep 20261,065 Regular
Dec 2025: 772Jan 2026: 793Feb 2026: 793Mar 2026: 793Apr 2026: 793May 2026: 793Jun 2026: 1064Jul 2026: 1065Aug 2026: 1065Sep 2026: 1065
Dec 2025Sep 2026
10 updates in this window · +293 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -296 Quick vs Regular

    No national baseline for this rating band yet.

  • -630 Blitz vs Regular (provisional)

    No national baseline for this rating band yet.

  • -930 Online Regular vs Regular (provisional)

    No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+271
May 2026 to Jun 2026
Biggest drop
No drop between published updates yet
Longest rise
2 updates
+272 from May 2026 to Jul 2026
Current run
2 updates
Unchanged since Jul 2026
Typical move
±33
Mean absolute change; spread ±89.7

Regular rating in context

Sep 2026 update

United States

#32,340of 83,635 rated members · higher than 61.2%

51,265 lower · 31 same rating · 32,339 higher · ties share a rank

California

#3,773of 9,051 rated members · higher than 58.3%

5,277 lower · 2 same rating · 3,772 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 7,627 within 100 points of 1,065 (this player included)

Player · 1,065
01,4502,900

1,0501,099: 1,855 members (2.2%) · highlighted band is the player’s · dashed line is the target

62.8% below 1,100 (52,555 of 83,635; 61.2% below 1,065)

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 Peterson, Whitman Louis
MonthRegularQuickBlitzOnline Regular
Sep 20261,065no change769no change435 P+1 · 16 games135 Pno change · 4 games
Aug 20261,065no change769-1434 Pno change · 16 games135 Pno change · 4 games
Jul 20261,065+1770+1434 Pno change · 16 games135 Pno change · 4 games
Jun 20261,064+271769+11434 Pno change · 16 games135 Pno change · 4 games
May 2026793no change758no change434 Pno change · 16 games135 Pno change · 4 games
Apr 2026793no change758no change434 Pno change · 16 games135 Pno change · 4 games
Mar 2026793no change758no change434 Pno change · 16 games135 Pno change · 4 games
Feb 2026793no change758no change434 Pno change · 16 games135 Pno change · 4 games
Jan 2026793+21758+33434 Pno change · 16 games135 Pno change · 4 games
Dec 2025772725434 P16 games135 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.