USCF player statistics

Arias-Vargas, Sebastian

USCF 33127667VirginiaUpdated: Nov 2026

Official US Chess record

Gender: Male
US Chess reported rank: #40,393 national · #1,241 in state
Floor: Regular 109 · Quick 109
Rated games: Regular 4 · Quick 4

US Chess record as of Sep 18, 2026

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Regular rating

844

Provisional rating · Nov 2026 · 4 published updates since Aug 2026

Nov 2026844 provisional

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6 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-34 Quick vs Regular (provisional)
Typical for 800–899 regular players: -11 (middle half -31 to +8, 2,426 established members). This gap is below the typical range.
-132 Blitz vs Regular (provisional)
Typical for 800–899 regular players: -103 (middle half -213 to +39, 205 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain: +152; Oct 2026 to Nov 2026
Biggest drop: —; No drop between published updates yet
Longest rise: 1 update; +152 from Oct 2026 to Nov 2026
Updates that moved: 1 of 3; Latest +152, Oct 2026 to Nov 2026
Typical move: ±51; Mean absolute change; spread ±87.8

Regular rating in context

Nov 2026 update

United States

#41,758of 83,032 rated members · higher than 49.6%

41,232 lower · 43 same rating · 41,757 higher · ties share a rank

Virginia

#1,359of 2,592 rated members · higher than 47.5%

1,232 lower · 2 same rating · 1,358 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 8,984 within 100 points of 844 (this player included)

Player · 844

01,4252,850

800–849: 2,288 members (2.7%) · highlighted band is the player’s · dashed line is the target

Target 850

49.9% below 850 (41,511 of 83,032; 49.6% below 844)

Percentile over time · United States

49.6% higher than · Nov 2026 · rank #41,758 of 83,032

Since Aug 2026
+7.8 pts

Aug 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 Virginia 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 Arias-Vargas, Sebastian
Month	Regular	Quick	Blitz
Nov 2026	844 P+152 · 14 games	810 P+136 · 14 games	712 P14 games
Oct 2026	692 Pno change · 4 games	674 Pno change · 4 games	—
Sep 2026	692 Pno change · 4 games	674 Pno change · 4 games	—
Aug 2026	692 P4 games	674 P4 games	—
Jul 2026	—	—	—
Jun 2026	—	—	—

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