USCF player statistics

Mariappan, Arun

USCF 15993528MarylandLatest monthly rating update: Sep 2026

FIDE: FIDE 0
TD: Local
Floor: Regular 106 · Quick 102 · Blitz 100

US Chess record as of Sep 15, 2026

Chess67 DiscordChat with the Chess67 community.Open Find a chess tournamentUpcoming events near you.Browse Find a chess clubClubs and meetups near you.Browse

Regular rating

6100 since Aug 2026

Published rating · Sep 2026 · 10 published updates since Dec 2025

Sep 2026610 Regular

Compare format

Dec 2025Sep 2026

10 updates in this window · 0 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

-3 Quick vs Regular
No national baseline for this rating band yet.
-326 Blitz vs Regular
No national baseline for this rating band yet.

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: 9 updates; Unchanged since Dec 2025
Typical move: ±0; Mean absolute change; spread ±0

Regular rating in context

Sep 2026 update

United States

36.7%of the comparison population has a lower rating.

30,748 lower · 60 same rating · 52,827 higher

Maryland

36.5%of the comparison population has a lower rating.

687 lower · 0 same rating · 1,191 higher

Where this rating sits · United States

83,635 rated members in 50-point bands · median 800–849 · 10,535 within 100 points of 610

Player · 610

01,4502,900

600–649: 2,641 members (3.1%) · highlighted band is the player’s · dashed line is the target

Target 650

39.2% below 650 (32,836 of 83,635; 36.7% below 610)

How these comparisons are calculated

Chess67 calculations from the Sep 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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.

United States statistics Maryland 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 Mariappan, Arun
Month	Regular	Quick	Blitz
Sep 2026	610no change	607no change	284no change
Aug 2026	610no change	607no change	284no change
Jul 2026	610no change	607no change	284no change
Jun 2026	610no change	607no change	284no change
May 2026	610no change	607no change	284no change
Apr 2026	610no change	607no change	284no change
Mar 2026	610no change	607no change	284no change
Feb 2026	610no change	607no change	284no change
Jan 2026	610no change	607no change	284no change
Dec 2025	610	607	284