USCF player statistics

Nachiappan, Riyan

USCF 33211197WashingtonUpdated: Nov 2026
Official US Chess record

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Gender
Male
Floor
Regular 120 · Quick 120

US Chess record as of Aug 9, 2026

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Rating format

Regular rating

437

Provisional rating · Nov 2026 · 3 published updates since Sep 2026

Nov 2026437 provisional
Sep 2026: 437 provisionalOct 2026: 437 provisionalNov 2026: 437 provisional
Sep 2026Nov 2026
3 updates in this window · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity
Overlays their published ratings on the chart; the link keeps the comparison.

Other formats against Regular

  • -18 Quick vs Regular (provisional)

    Typical for 400–499 regular players: -1 (middle half -9 to +7, 1,654 established members). This gap is below 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
2 updates
Unchanged since Sep 2026
Typical move
±0
Mean absolute change; spread ±0

Regular rating in context

Nov 2026 update

United States

#62,130of 83,032 rated members · higher than 25.1%

20,843 lower · 60 same rating · 62,129 higher · ties share a rank

Washington

#1,695of 2,140 rated members · higher than 20.7%

443 lower · 3 same rating · 1,694 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 10,807 within 100 points of 437 (this player included)

Player · 437
01,4252,850

400–449: 2,739 members (3.2%) · highlighted band is the player’s · dashed line is the target

25.9% below 450 (21,555 of 83,032; 25.1% below 437)

Percentile over time · United States

25.1% higher than · Nov 2026 · rank #62,130 of 83,032

Since Sep 2026
-0.4 pts

Sep 2026: higher than 25.5% (rank 62,239 of 83,635)Oct 2026: higher than 25.2% (rank 61,697 of 82,596)Nov 2026: higher than 25.1% (rank 62,130 of 83,032)
Sep 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 Washington 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 Nachiappan, Riyan
MonthRegularQuick
Nov 2026437 Pno change · 9 games419 Pno change · 9 games
Oct 2026437 Pno change · 9 games419 Pno change · 9 games
Sep 2026437 P9 games419 P9 games

About these statistics. Built from the monthly USCF rating updates available to Chess67. Ratings change between publications, and a missing month is not inactivity. The official US Chess record has current ratings and tournament history.