USCF player statistics
Hariharan, Karthikeyan
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+3 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +126
- Dec 2025 to Jan 2026
- Biggest drop
- -68
- May 2026 to Jun 2026
- Longest rise
- 3 updates
- +129 from Jun 2026 to Sep 2026
- Updates that moved
- 9 of 9
- Latest +4, Aug 2026 to Sep 2026
- Typical move
- ±63
- Mean absolute change; spread ±77.8
Regular rating in context
United States
#62,557of 83,635 rated members · higher than 25.1%
21,010 lower · 69 same rating · 62,556 higher · ties share a rank
North Carolina
#2,124of 2,742 rated members · higher than 22.5%
618 lower · 1 same rating · 2,123 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 11,018 within 100 points of 431 (this player included)
400–449: 2,735 members (3.2%) · highlighted band is the player’s · dashed line is the target
26.3% below 450 (22,043 of 83,635; 25.1% below 431)
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 | 431+4 | 434+6 |
| Aug 2026 | 427+2 | 428+2 |
| Jul 2026 | 425+123 | 426+125 |
| Jun 2026 | 302-68 | 301-68 |
| May 2026 | 370-64 | 369-63 |
| Apr 2026 | 434 P+126 · 22 games | 432 P+123 · 22 games |
| Mar 2026 | 308 P+54 · 18 games | 309 P+55 · 18 games |
| Feb 2026 | 254 P-1 · 18 games | 254 P-1 · 18 games |
| Jan 2026 | 255 P+126 · 16 games | 255 P+126 · 16 games |
| Dec 2025 | 129 P9 games | 129 P9 games |