USCF player statistics

Si, Marcus

USCF 32455584CaliforniaLatest monthly rating update: Sep 2026

FIDE: FIDE 0

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Regular rating

694+119 since Aug 2026

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

Sep 2026694 Regular

Compare format

Dec 2025Sep 2026

10 updates in this window · +564 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

+10 Quick vs Regular
No national baseline for this rating band yet.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +346; Apr 2026 to May 2026
Biggest drop: -51; May 2026 to Jun 2026
Longest rise: 2 updates; +527 from Mar 2026 to May 2026
Updates that moved: 8 of 9; Latest +119, Aug 2026 to Sep 2026
Typical move: ±85; Mean absolute change; spread ±130.3

Regular rating in context

Sep 2026 update

United States

#48,576of 83,635 rated members · higher than 41.8%

35,013 lower · 47 same rating · 48,575 higher · ties share a rank

California

#5,550of 9,051 rated members · higher than 38.6%

3,496 lower · 6 same rating · 5,549 higher · ties share a rank

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 9,949 within 100 points of 694 (this player included)

Player · 694

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; 41.8% below 694)

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 Si, Marcus
Month	Regular	Quick
Sep 2026	694+119	704+245
Aug 2026	575+5	459+117
Jul 2026	570-41	342no change
Jun 2026	611-51	342+27
May 2026	662+346	315no change
Apr 2026	316+181	315+180
Mar 2026	135no change	135no change
Feb 2026	135-7	135-8
Jan 2026	142+12	143+13
Dec 2025	130	130