USCF player statistics
Kafer, Sullivan
- Gender
- Male
- US Chess reported rank
- #51,460 national · #653 in state
- Floor
- Regular 150 · Quick 148
- Rated games
- Regular 23 · Quick 19
US Chess record as of Oct 23, 2026
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +149
- Aug 2026 to Sep 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 2 updates
- +256 from Aug 2026 to Oct 2026
- Updates that moved
- 4 of 7
- Latest +107, Sep 2026 to Oct 2026
- Typical move
- ±58
- Mean absolute change; spread ±59.8
Regular rating in context
United States
#58,141of 82,596 rated members · higher than 29.5%
24,399 lower · 57 same rating · 58,140 higher · ties share a rank
Minnesota
#788of 1,009 rated members · higher than 21.6%
218 lower · 4 same rating · 787 higher · ties share a rank
Where this rating sits · United States
82,596 rated members in 50-point bands · median 800–849 · 10,687 within 100 points of 504 (this player included)
500–549: 2,652 members (3.2%) · highlighted band is the player’s · dashed line is the target
32.4% below 550 (26,829 of 82,596; 29.5% below 504)
Percentile over time · United States
29.5% higher than · Oct 2026 · rank #58,141 of 82,596
Since Mar 2026
+29.5 pts
How these comparisons are calculated
Chess67 calculations from the Oct 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 |
|---|---|---|
| Oct 2026 | 504 P+107 · 23 games | 498 P+114 · 19 games |
| Sep 2026 | 397 P+149 · 16 games | 384 P+140 · 16 games |
| Aug 2026 | 248 Pno change · 12 games | 244 Pno change · 12 games |
| Jul 2026 | 248 Pno change · 12 games | 244 Pno change · 12 games |
| Jun 2026 | 248 P+63 · 12 games | 244 P+61 · 12 games |
| May 2026 | 185 Pno change · 8 games | 183 Pno change · 8 games |
| Apr 2026 | 185 P+84 · 8 games | 183 P+82 · 8 games |
| Mar 2026 | 101 P4 games | 101 P4 games |
| Feb 2026 | — | — |
| Jan 2026 | — | — |