USCF player statistics
Arun, Harshini
Official US Chess record- FIDE
- FIDE 0
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-6 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +138
- Dec 2025 to Jan 2026
- Biggest drop
- -124
- Feb 2026 to Mar 2026
- Longest rise
- 1 update
- +138 from Dec 2025 to Jan 2026
- Current run
- 3 updates
- Unchanged since Jun 2026
- Typical move
- ±50
- Mean absolute change; spread ±77.2
Regular rating in context
United States
37.5%of the comparison population has a lower rating.
31,441 lower · 49 same rating · 52,145 higher
California
34.2%of the comparison population has a lower rating.
3,104 lower · 4 same rating · 5,943 higher
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,426 within 100 points of 623
600–649: 2,641 members (3.1%) · highlighted band is the player’s · dashed line is the target
39.2% below 650 (32,836 of 83,635; 37.5% below 623)
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.
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 | 623no change | 617no change |
| Aug 2026 | 623no change | 617no change |
| Jul 2026 | 623no change | 617no change |
| Jun 2026 | 623-64 | 617-65 |
| May 2026 | 687-42 | 682-42 |
| Apr 2026 | 729+86 | 724+88 |
| Mar 2026 | 643-124 | 636-128 |
| Feb 2026 | 767no change | 764no change |
| Jan 2026 | 767+138 | 764+137 |
| Dec 2025 | 629 | 627 |