USCF player statistics

Chang, Roy

USCF 33163560TexasUpdated: Nov 2026

Official US Chess record

Gender: Male
US Chess reported rank: #49,425 national · #5,970 in state
Floor: Regular 147 · Quick 147
Rated games: Regular 17 · Quick 17

US Chess record as of Sep 18, 2026

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Regular rating

579

Published rating · Nov 2026 · 5 published updates since Jul 2026

Nov 2026579 Regular

Compare format

Jul 2026Nov 2026

5 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

+1 Quick vs Regular
Typical for 500–599 regular players: -3 (middle half -12 to +8, 2,095 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +161; Oct 2026 to Nov 2026
Biggest drop: -92; Sep 2026 to Oct 2026
Longest rise: 2 updates; +175 from Jul 2026 to Sep 2026
Updates that moved: 4 of 4; Latest +161, Oct 2026 to Nov 2026
Typical move: ±107; Mean absolute change; spread ±119.9

Regular rating in context

Nov 2026 update

United States

#54,587of 83,032 rated members · higher than 34.1%

28,392 lower · 54 same rating · 54,586 higher · ties share a rank

Texas

#6,030of 10,533 rated members · higher than 42.6%

4,491 lower · 13 same rating · 6,029 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,338 within 100 points of 579 (this player included)

Player · 579

01,4252,850

550–599: 2,600 members (3.1%) · highlighted band is the player’s · dashed line is the target

Target 600

35.5% below 600 (29,497 of 83,032; 34.1% below 579)

Percentile over time · United States

34.1% higher than · Nov 2026 · rank #54,587 of 83,032

Since Jul 2026
+15 pts

Jul 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 Texas 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 Chang, Roy
Month	Regular	Quick
Nov 2026	579+161	580+161
Oct 2026	418 P-92 · 22 games	419 P-91 · 22 games
Sep 2026	510 P+23 · 17 games	510 P+22 · 17 games
Aug 2026	487 P+152 · 14 games	488 P+153 · 14 games
Jul 2026	335 P4 games	335 P4 games

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