USCF player statistics

Yuan, Siying

USCF 31717587ArizonaUpdated: Oct 2026

Official US Chess record

Biggest rank climb · #38 in Arizona (Blitz)

Gender: Female
FIDE: FIDE 0
US Chess reported rank: #23,237 national · #486 in state
Floor: Regular 150 · Quick 150 · Blitz 150

US Chess record as of Sep 16, 2026

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Regular rating

1,1290 since Sep 2026

Published rating · Oct 2026 · 11 published updates since Dec 2025

Oct 20261,129 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · +53 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-9 Quick vs Regular
Typical for 1,100–1,199 regular players: -39 (middle half -90 to -9, 2,023 established members). This gap is within the typical range.
-170 Blitz vs Regular
Typical for 1,100–1,199 regular players: -163 (middle half -306 to -52, 365 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +87; Dec 2025 to Jan 2026
Biggest drop: -27; Apr 2026 to May 2026
Longest rise: 1 update; +87 from Dec 2025 to Jan 2026
Current run: 2 updates; Unchanged since Aug 2026
Typical move: ±12; Mean absolute change; spread ±29.9

Regular rating in context

Oct 2026 update

United States

#29,989of 82,596 rated members · higher than 63.6%

52,555 lower · 53 same rating · 29,988 higher · ties share a rank

Arizona

#669of 1,672 rated members · higher than 59.9%

1,002 lower · 2 same rating · 668 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 7,296 within 100 points of 1,129 (this player included)

Player · 1,129

01,4502,900

1,100–1,149: 1,836 members (2.2%) · highlighted band is the player’s · dashed line is the target

Target 1,150

64.5% below 1,150 (53,296 of 82,596; 63.6% below 1,129)

Percentile over time · United States

63.6% higher than · Oct 2026 · rank #29,989 of 82,596

Since Dec 2025
+2.2 pts

Dec 2025Oct 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 Oct 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 Yuan, Siying
Month	Regular	Quick	Blitz
Oct 2026	1,129no change	1,120no change	959no change
Sep 2026	1,129no change	1,120no change	959no change
Aug 2026	1,129-7	1,120-5	959no change
Jul 2026	1,136no change	1,125no change	959no change
Jun 2026	1,136no change	1,125no change	959no change
May 2026	1,136-27	1,125-28	959no change
Apr 2026	1,163no change	1,153no change	959no change
Mar 2026	1,163no change	1,153no change	959no change
Feb 2026	1,163no change	1,153no change	959no change
Jan 2026	1,163+87	1,153+98	959no change
Dec 2025	1,076	1,055	959

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