USCF player statistics

Chellappa, Alagu Arumugam

USCF 17018441North CarolinaUpdated: Nov 2026
Official US Chess record

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Gender
Male
FIDE
FIDE 39983153
US Chess reported rank
#11,466 national · #410 in state
Floor
Regular 1,300 · Quick 118 · Blitz 126
Rated games
Quick 20 · Blitz 16

US Chess record as of Sep 15, 2026

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Rating format

Regular rating

1,478-53 since Oct 2026

Published rating · Nov 2026 · 12 published updates since Dec 2025

Nov 20261,478 Regular
Dec 2025: 1452Jan 2026: 1442Feb 2026: 1593Mar 2026: 1569Apr 2026: 1503May 2026: 1467Jun 2026: 1531Jul 2026: 1550Aug 2026: 1522Sep 2026: 1550Oct 2026: 1531Nov 2026: 1478
Dec 2025Nov 2026
12 updates in this window · +26 first to last · open points are provisional · guides mark US Chess classes · unpublished months are skipped, not inactivity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

  • -262 Quick vs Regular (provisional)

    Typical for 1,400–1,499 regular players: -85 (middle half -160 to -36, 2,037 established members). This gap is below the typical range.

  • -255 Blitz vs Regular

    Typical for 1,400–1,499 regular players: -195 (middle half -346 to -64, 683 established members). This gap is within the typical range.

How this rating moves

Between consecutive published observations, provisional included.

Biggest gain
+151
Jan 2026 to Feb 2026
Biggest drop
-66
Mar 2026 to Apr 2026
Longest rise
2 updates
+83 from May 2026 to Jul 2026
Updates that moved
11 of 11
Latest -53, Oct 2026 to Nov 2026
Typical move
±45
Mean absolute change; spread ±61.9

Regular rating in context

Nov 2026 update

United States

#18,141of 83,032 rated members · higher than 78.1%

64,861 lower · 31 same rating · 18,140 higher · ties share a rank

North Carolina

#632of 2,787 rated members · higher than 77.2%

2,154 lower · 2 same rating · 631 higher · ties share a rank

Where this rating sits · United States

83,032 rated members in 50-point bands · median 850–899 · 6,944 within 100 points of 1,478 (this player included)

Player · 1,478
01,4252,850

1,450–1,499: 1,566 members (1.8%) · highlighted band is the player’s · dashed line is the target

78.9% below 1,500 (65,557 of 83,032; 78.1% below 1,478)

Percentile over time · United States

78.1% higher than · Nov 2026 · rank #18,141 of 83,032

Since Dec 2025
+1 pts

Dec 2025: higher than 77.1% (rank 18,469 of 81,102)Jan 2026: higher than 76.4% (rank 18,699 of 79,487)Feb 2026: higher than 82.9% (rank 14,310 of 83,940)Mar 2026: higher than 81.8% (rank 14,594 of 80,605)Apr 2026: higher than 79.2% (rank 16,726 of 80,831)May 2026: higher than 77.7% (rank 18,079 of 81,236)Jun 2026: higher than 80.8% (rank 15,910 of 83,290)Jul 2026: higher than 81.5% (rank 15,200 of 82,736)Aug 2026: higher than 80.4% (rank 16,184 of 83,080)Sep 2026: higher than 81.5% (rank 15,395 of 83,635)Oct 2026: higher than 80.5% (rank 16,074 of 82,596)Nov 2026: higher than 78.1% (rank 18,141 of 83,032)
Dec 2025Nov 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 North Carolina 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 Chellappa, Alagu Arumugam
MonthRegularQuickBlitz
Nov 20261,478-531,216 Pno change · 20 games1,223no change
Oct 20261,531-191,216 Pno change · 20 games1,223-16
Sep 20261,550+281,216 Pno change · 20 games1,239 Pno change · 16 games
Aug 20261,522-281,216 Pno change · 20 games1,239 Pno change · 16 games
Jul 20261,550+191,216 Pno change · 20 games1,239 Pno change · 16 games
Jun 20261,531+641,216 Pno change · 20 games1,239 Pno change · 16 games
May 20261,467-361,216 Pno change · 20 games1,239 Pno change · 16 games
Apr 20261,503-661,216 Pno change · 20 games1,239 Pno change · 16 games
Mar 20261,569-241,216 Pno change · 20 games1,239 Pno change · 16 games
Feb 20261,593+1511,216 Pno change · 20 games1,239 Pno change · 16 games
Jan 20261,442-101,216 Pno change · 20 games1,239 Pno change · 16 games
Dec 20251,4521,216 P20 games1,239 P16 games
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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.