USCF player statistics
Muthukumar, Arunan
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-11 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +288
- Jan 2026 to Feb 2026
- Biggest drop
- -62
- Apr 2026 to May 2026
- Longest rise
- 3 updates
- +507 from Dec 2025 to Mar 2026
- Current run
- 4 updates
- Unchanged since May 2026
- Typical move
- ±63
- Mean absolute change; spread ±117.8
Regular rating in context
United States
#56,021of 83,635 rated members · higher than 32.9%
27,561 lower · 54 same rating · 56,020 higher · ties share a rank
Texas
#6,242of 10,810 rated members · higher than 42.2%
4,562 lower · 7 same rating · 6,241 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,822 within 100 points of 551 (this player included)
550–599: 2,691 members (3.2%) · highlighted band is the player’s · dashed line is the target
36.1% below 600 (30,195 of 83,635; 32.9% below 551)
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, with this player at their recorded rating: it is a rating comparison, not a prediction of future rank.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick |
|---|---|---|
| Sep 2026 | 551no change | 540-17 |
| Aug 2026 | 551no change | 557no change |
| Jul 2026 | 551no change | 557no change |
| Jun 2026 | 551no change | 557no change |
| May 2026 | 551-62 | 557-58 |
| Apr 2026 | 613 Pno change · 22 games | 615 Pno change · 22 games |
| Mar 2026 | 613 P+4 · 22 games | 615 P+4 · 22 games |
| Feb 2026 | 609 P+288 · 22 games | 611 P+287 · 22 games |
| Jan 2026 | 321 P+215 · 14 games | 324 P+218 · 14 games |
| Dec 2025 | 106 P11 games | 106 P11 games |