USCF player statistics
Sonthalia, Vibhav Uscf
Official US Chess record- FIDE
- FIDE 0
- US Chess reported rank
- #60,884 national · #3,613 in state
- Floor
- Regular 150 · Quick 150 · Online Regular 100
- Rated games
- Online Regular 14
US Chess record as of Aug 18, 2026
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+4 Quick vs Regular
No national baseline for this rating band yet.
-8 Online Regular vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +65
- Apr 2026 to May 2026
- Biggest drop
- -63
- May 2026 to Jun 2026
- Longest rise
- 2 updates
- +68 from Mar 2026 to May 2026
- Updates that moved
- 6 of 9
- Latest +45, Aug 2026 to Sep 2026
- Typical move
- ±26
- Mean absolute change; spread ±38.5
Regular rating in context
United States
#65,456of 83,635 rated members · higher than 21.6%
18,137 lower · 43 same rating · 65,455 higher · ties share a rank
California
#7,312of 9,051 rated members · higher than 19.1%
1,735 lower · 5 same rating · 7,311 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,785 within 100 points of 378 (this player included)
350–399: 2,689 members (3.2%) · highlighted band is the player’s · dashed line is the target
23% below 400 (19,308 of 83,635; 21.6% below 378)
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 | Online Regular |
|---|---|---|---|
| Sep 2026 | 378+45 | 382+44 | 370 Pno change · 14 games |
| Aug 2026 | 333no change | 338no change | 370 Pno change · 14 games |
| Jul 2026 | 333no change | 338no change | 370 Pno change · 14 games |
| Jun 2026 | 333-63 | 338-63 | 370 Pno change · 14 games |
| May 2026 | 396+65 | 401+66 | 370 P+1 · 14 games |
| Apr 2026 | 331+3 | 335+1 | 369 Pno change · 14 games |
| Mar 2026 | 328 Pno change · 22 games | 334 Pno change · 22 games | 369 Pno change · 14 games |
| Feb 2026 | 328 P-36 · 22 games | 334 P-36 · 22 games | 369 P14 games |
| Jan 2026 | 364 P+22 · 18 games | 370 P+28 · 18 games | — |
| Dec 2025 | 342 P14 games | 342 P14 games | — |