USCF player statistics
Vaddadi, Ajay Kumar
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
0 Quick vs Regular (provisional)
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
- -1
- Mar 2026 to Apr 2026
- Longest rise
- —
- No consecutive gains yet
- Current run
- 5 updates
- Unchanged since Apr 2026
- Typical move
- ±0
- Mean absolute change; spread ±0.3
Regular rating in context
United States
#51,038of 83,635 rated members · higher than 38.9%
32,539 lower · 59 same rating · 51,037 higher · ties share a rank
California
#5,825of 9,051 rated members · higher than 35.5%
3,218 lower · 9 same rating · 5,824 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,293 within 100 points of 644 (this player included)
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; 38.9% below 644)
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 | 644 Pno change · 11 games | 644 Pno change · 11 games |
| Aug 2026 | 644 Pno change · 11 games | 644 Pno change · 11 games |
| Jul 2026 | 644 Pno change · 11 games | 644 Pno change · 11 games |
| Jun 2026 | 644 Pno change · 11 games | 644 Pno change · 11 games |
| May 2026 | 644 Pno change · 11 games | 644 Pno change · 11 games |
| Apr 2026 | 644 P-1 · 11 games | 644 P-2 · 11 games |
| Mar 2026 | 645 Pno change · 11 games | 646 Pno change · 11 games |
| Feb 2026 | 645 Pno change · 11 games | 646 Pno change · 11 games |
| Jan 2026 | 645 Pno change · 11 games | 646 Pno change · 11 games |
| Dec 2025 | 645 P11 games | 646 P11 games |