USCF player statistics

Kong, Xiangren

USCF 33147012CaliforniaUpdated: Nov 2026

Official US Chess record

Gender: Male
US Chess reported rank: #49,485 national · #2,543 in state
Floor: Regular 122 · Quick 122
Rated games: Regular 4 · Quick 4

US Chess record as of Sep 18, 2026

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Regular rating

639

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

Nov 2026639 provisional

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5 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-46 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: +130; Sep 2026 to Oct 2026
Biggest drop: —; No drop between published updates yet
Longest rise: 1 update; +130 from Sep 2026 to Oct 2026
Current run: 1 update; Unchanged since Oct 2026
Typical move: ±33; Mean absolute change; spread ±65

Regular rating in context

Nov 2026 update

United States

#51,450of 83,032 rated members · higher than 37.9%

31,522 lower · 61 same rating · 51,449 higher · ties share a rank

California

#6,015of 9,288 rated members · higher than 35.1%

3,268 lower · 6 same rating · 6,014 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,085 within 100 points of 639 (this player included)

Player · 639

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; 37.9% below 639)

Percentile over time · United States

37.9% higher than · Nov 2026 · rank #51,450 of 83,032

Since Jul 2026
+7.5 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 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 Kong, Xiangren
Month	Regular	Quick
Nov 2026	639 Pno change · 8 games	593 Pno change · 8 games
Oct 2026	639 P+130 · 8 games	593 P+124 · 8 games
Sep 2026	509 Pno change · 4 games	469 Pno change · 4 games
Aug 2026	509 Pno change · 4 games	469 Pno change · 4 games
Jul 2026	509 P4 games	469 P4 games

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