USCF player statistics
Kasprzak, Bartosz
- Gender
- Male
- US Chess reported rank
- #43,119
- Floor
- Regular 120 · Quick 120
- Rated games
- Regular 6 · Quick 6
US Chess record as of Sep 18, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +12
- Sep 2026 to Oct 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +12 from Sep 2026 to Oct 2026
- Current run
- 1 update
- Unchanged since Oct 2026
- Typical move
- ±6
- Mean absolute change; spread ±8.5
Regular rating in context
United States
38.4%of the comparison population has a lower rating.
31,903 lower · 46 same rating · 51,083 higher
Where this rating sits · United States
83,032 rated members in 50-point bands · median 850–899 · 10,047 within 100 points of 646
600–649: 2,591 members (3.1%) · highlighted band is the player’s · dashed line is the target
38.6% below 650 (32,088 of 83,032; 38.4% below 646)
Percentile over time · United States
38.4% higher than · Nov 2026 · rank #51,084 of 83,032
Since Sep 2026
+0.2 pts
How these comparisons are calculated
Chess67 calculations from the Nov 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: it is a rating comparison, not a prediction of future rank. This player is outside that comparison population; no membership rank is assigned.
Published ratings by month
P marks a provisional rating; the small figure is the change since the previous published observation.
| Month | Regular | Quick |
|---|---|---|
| Nov 2026 | 646 Pno change · 10 games | 625 Pno change · 10 games |
| Oct 2026 | 646 P+12 · 10 games | 625 P+9 · 10 games |
| Sep 2026 | 634 P6 games | 616 P6 games |