USCF player statistics
Bossola, Rio
Official US Chess record- FIDE
- FIDE 39951154
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-109 Quick vs Regular
No national baseline for this rating band yet.
-81 Blitz vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +53
- Apr 2026 to May 2026
- Biggest drop
- -69
- Mar 2026 to Apr 2026
- Longest rise
- 2 updates
- +56 from Dec 2025 to Feb 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±22
- Mean absolute change; spread ±34.9
Regular rating in context
United States
#5,487of 83,635 rated members · higher than 93.4%
78,129 lower · 20 same rating · 5,486 higher · ties share a rank
New York
#633of 9,415 rated members · higher than 93.2%
8,781 lower · 2 same rating · 632 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 4,681 within 100 points of 1,885 (this player included)
1,850–1,899: 1,069 members (1.2%) · highlighted band is the player’s · dashed line is the target
93.8% below 1,900 (78,459 of 83,635; 93.4% below 1,885)
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 | Blitz |
|---|---|---|---|
| Sep 2026 | 1,885no change | 1,776no change | 1,804no change |
| Aug 2026 | 1,885no change | 1,776no change | 1,804no change |
| Jul 2026 | 1,885-1 | 1,776no change | 1,804no change |
| Jun 2026 | 1,886-17 | 1,776-25 | 1,804-11 |
| May 2026 | 1,903+53 | 1,801+58 | 1,815-18 |
| Apr 2026 | 1,850-69 | 1,743-62 | 1,833+10 |
| Mar 2026 | 1,919no change | 1,805+4 | 1,823+10 |
| Feb 2026 | 1,919+42 | 1,801+42 | 1,813no change |
| Jan 2026 | 1,877+14 | 1,759+14 | 1,813no change |
| Dec 2025 | 1,863 | 1,745 | 1,813 |