USCF player statistics
Prohaska, Joseph R
Official US Chess record- FIDE
- FIDE 0
- TD
- Club
- US Chess reported rank
- #25,587 national · #1,261 in state
- Floor
- Regular 106 · Quick 106
- Rated games
- Quick 21
US Chess record as of Sep 15, 2026
Regular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
+31 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
- -69
- Aug 2026 to Sep 2026
- Longest rise
- —
- No consecutive gains yet
- Updates that moved
- 1 of 9
- Latest -69, Aug 2026 to Sep 2026
- Typical move
- ±8
- Mean absolute change; spread ±23
Regular rating in context
United States
#32,676of 83,635 rated members · higher than 60.8%
50,920 lower · 40 same rating · 32,675 higher · ties share a rank
Florida
#1,678of 4,396 rated members · higher than 61.8%
2,717 lower · 2 same rating · 1,677 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 7,716 within 100 points of 1,056 (this player included)
1,050–1,099: 1,855 members (2.2%) · highlighted band is the player’s · dashed line is the target
62.8% below 1,100 (52,555 of 83,635; 60.8% below 1,056)
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 | 1,056-69 | 1,087 P-84 · 21 games |
| Aug 2026 | 1,125no change | 1,171 Pno change · 18 games |
| Jul 2026 | 1,125no change | 1,171 Pno change · 18 games |
| Jun 2026 | 1,125no change | 1,171 Pno change · 18 games |
| May 2026 | 1,125no change | 1,171 Pno change · 18 games |
| Apr 2026 | 1,125no change | 1,171 Pno change · 18 games |
| Mar 2026 | 1,125no change | 1,171 Pno change · 18 games |
| Feb 2026 | 1,125no change | 1,171 Pno change · 18 games |
| Jan 2026 | 1,125no change | 1,171 Pno change · 18 games |
| Dec 2025 | 1,125 | 1,171 P18 games |