USCF player statistics

Ma, Charles

USCF 33213799CaliforniaUpdated: Nov 2026

Official US Chess record

Gender: Male
US Chess reported rank: #43,120 national · #2,573 in state
Floor: Regular 111 · Quick 111
Rated games: Regular 4 · Quick 4

US Chess record as of Sep 18, 2026

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Regular rating

634

Provisional rating · Nov 2026 · 3 published updates since Sep 2026

Nov 2026634 provisional

Compare format

Sep 2026Nov 2026

3 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-35 Quick vs Regular (provisional)
Typical for 600–699 regular players: -4 (middle half -16 to +11, 2,305 established members). This gap is below the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: —; No gain between published updates yet
Biggest drop: —; No drop between published updates yet
Longest rise: —; No consecutive gains yet
Current run: 2 updates; Unchanged since Sep 2026
Typical move: ±0; Mean absolute change; spread ±0

Regular rating in context

Nov 2026 update

United States

#51,720of 83,032 rated members · higher than 37.6%

31,268 lower · 45 same rating · 51,719 higher · ties share a rank

California

#6,046of 9,288 rated members · higher than 34.8%

3,235 lower · 8 same rating · 6,045 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,113 within 100 points of 634 (this player included)

Player · 634

01,4252,850

600–649: 2,591 members (3.1%) · highlighted band is the player’s · dashed line is the target

Target 650

38.6% below 650 (32,088 of 83,032; 37.6% below 634)

Percentile over time · United States

37.6% higher than · Nov 2026 · rank #51,720 of 83,032

Since Sep 2026
-0.6 pts

Sep 2026Nov 2026

Each month against that month’s active pool, so pool growth and rating drift both count.

How these comparisons are calculated

Chess67 calculations from the Nov 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 Ma, Charles
Month	Regular	Quick
Nov 2026	634 Pno change · 4 games	599 Pno change · 4 games
Oct 2026	634 Pno change · 4 games	599 Pno change · 4 games
Sep 2026	634 P4 games	599 P4 games

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