USCF player statistics
Kammerer, Matthew
Official US Chess recordRegular rating
Published rating · Sep 2026 · 10 published updates since Dec 2025
Other formats against Regular
-8 Quick vs Regular
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +251
- Apr 2026 to May 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +251 from Apr 2026 to May 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±48
- Mean absolute change; spread ±94
Regular rating in context
United States
#35,249of 83,635 rated members · higher than 57.8%
48,350 lower · 37 same rating · 35,248 higher · ties share a rank
Illinois
#1,613of 4,678 rated members · higher than 65.4%
3,063 lower · 3 same rating · 1,612 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 8,067 within 100 points of 991 (this player included)
950–999: 2,074 members (2.4%) · highlighted band is the player’s · dashed line is the target
58.2% below 1,000 (48,741 of 83,635; 57.8% below 991)
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 | 991no change | 983no change |
| Aug 2026 | 991no change | 983no change |
| Jul 2026 | 991+169 | 983+166 |
| Jun 2026 | 822 Pno change · 22 games | 817 Pno change · 22 games |
| May 2026 | 822 P+251 · 22 games | 817 P+248 · 22 games |
| Apr 2026 | 571 Pno change · 18 games | 569 Pno change · 18 games |
| Mar 2026 | 571 Pno change · 18 games | 569 Pno change · 18 games |
| Feb 2026 | 571 P+15 · 18 games | 569 P+14 · 18 games |
| Jan 2026 | 556 Pno change · 13 games | 555 Pno change · 13 games |
| Dec 2025 | 556 P13 games | 555 P13 games |