USCF player statistics

Peng, Sophia

USCF 15388591ArizonaUpdated: Oct 2026

Official US Chess record

Gender: Female
FIDE: FIDE 30952310
Floor: Regular 1,600 · Quick 1,400 · Blitz 100
Rated games: Blitz 20

US Chess record as of Sep 15, 2026

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Regular rating

1,7430 since Sep 2026

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

Oct 20261,743 Regular

Compare format

Dec 2025Oct 2026

11 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-83 Quick vs Regular
Typical for 1,700–1,799 regular players: -124 (middle half -209 to -70, 1,897 established members). This gap is within the typical range.
-262 Blitz vs Regular (provisional)
Typical for 1,700–1,799 regular players: -211 (middle half -332 to -94, 917 established members). This gap is within 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: 10 updates; Unchanged since Dec 2025
Typical move: ±0; Mean absolute change; spread ±0

Regular rating in context

Oct 2026 update

United States

#9,193of 82,596 rated members · higher than 88.8%

73,378 lower · 26 same rating · 9,192 higher · ties share a rank

Arizona

#226of 1,672 rated members · higher than 86.4%

1,445 lower · 2 same rating · 225 higher · ties share a rank

Where this rating sits · United States

82,596 rated members in 50-point bands · median 800–849 · 5,966 within 100 points of 1,743 (this player included)

Player · 1,743

01,4502,900

1,700–1,749: 1,661 members (2%) · highlighted band is the player’s · dashed line is the target

Target 1,750

89% below 1,750 (73,557 of 82,596; 88.8% below 1,743)

Percentile over time · United States

88.8% higher than · Oct 2026 · rank #9,193 of 82,596

Since Dec 2025
+0.1 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 Peng, Sophia
Month	Regular	Quick	Blitz
Oct 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Sep 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Aug 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Jul 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Jun 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
May 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Apr 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Mar 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Feb 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Jan 2026	1,743no change	1,660no change	1,481 Pno change · 20 games
Dec 2025	1,743	1,660	1,481 P20 games

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