USCF player statistics

Williams, Rider

USCF 33129216ArizonaUpdated: Nov 2026

Official US Chess record

Gender: Male
US Chess reported rank: #30,819 national · #638 in state
Floor: Regular 150 · Quick 150 · Blitz 136
Rated games: Regular 25 · Quick 25 · Blitz 20

US Chess record as of Sep 18, 2026

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Regular rating

907+136 since Oct 2026

Published rating · Nov 2026 · 6 published updates since Jun 2026

Nov 2026907 Regular

Compare format

Jun 2026Nov 2026

6 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

+5 Quick vs Regular
Typical for 900–999 regular players: -19 (middle half -47 to +3, 2,371 established members). This gap is above the typical range.
-79 Blitz vs Regular (provisional)
Typical for 900–999 regular players: -118 (middle half -267 to -7, 249 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +246; Jul 2026 to Aug 2026
Biggest drop: -145; Sep 2026 to Oct 2026
Longest rise: 3 updates; +491 from Jun 2026 to Sep 2026
Updates that moved: 5 of 5; Latest +136, Oct 2026 to Nov 2026
Typical move: ±154; Mean absolute change; spread ±155.9

Regular rating in context

Nov 2026 update

United States

#38,989of 83,032 rated members · higher than 52.9%

43,987 lower · 57 same rating · 38,988 higher · ties share a rank

Arizona

#858of 1,707 rated members · higher than 49.6%

847 lower · 3 same rating · 857 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 8,634 within 100 points of 907 (this player included)

Player · 907

01,4252,850

900–949: 2,171 members (2.6%) · highlighted band is the player’s · dashed line is the target

Target 950

55.1% below 950 (45,828 of 83,032; 52.9% below 907)

Percentile over time · United States

52.9% higher than · Nov 2026 · rank #38,989 of 83,032

Since Jun 2026
+28.1 pts

Jun 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 Arizona 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 Williams, Rider
Month	Regular	Quick	Blitz
Nov 2026	907+136	912+130	828 Pno change · 20 games
Oct 2026	771-145	782-153	828 Pno change · 20 games
Sep 2026	916+205	935+226	828 P+22 · 20 games
Aug 2026	711 P+246 · 18 games	709 P+243 · 18 games	806 P14 games
Jul 2026	465 P+40 · 11 games	466 P+38 · 11 games	—
Jun 2026	425 P4 games	428 P4 games	—

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