USCF player statistics
Toepperwein, Isaac Samuel
Official US Chess recordRegular rating
Provisional rating · Sep 2026 · 5 published updates since May 2026
Other formats against Regular
-4 Quick vs Regular (provisional)
No national baseline for this rating band yet.
How this rating moves
Between consecutive published observations, provisional included.
- Biggest gain
- +21
- Jun 2026 to Jul 2026
- Biggest drop
- —
- No drop between published updates yet
- Longest rise
- 1 update
- +21 from Jun 2026 to Jul 2026
- Current run
- 2 updates
- Unchanged since Jul 2026
- Typical move
- ±5
- Mean absolute change; spread ±10.5
Regular rating in context
United States
#68,074of 83,635 rated members · higher than 18.5%
15,513 lower · 49 same rating · 68,073 higher · ties share a rank
Michigan
#1,545of 1,935 rated members · higher than 20.1%
390 lower · 1 same rating · 1,544 higher · ties share a rank
Where this rating sits · United States
83,635 rated members in 50-point bands · median 800–849 · 10,591 within 100 points of 330 (this player included)
300–349: 2,672 members (3.1%) · highlighted band is the player’s · dashed line is the target
19.8% below 350 (16,619 of 83,635; 18.5% below 330)
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 | 330 Pno change · 9 games | 326 Pno change · 9 games |
| Aug 2026 | 330 Pno change · 9 games | 326 Pno change · 9 games |
| Jul 2026 | 330 P+21 · 9 games | 326 P+21 · 9 games |
| Jun 2026 | 309 Pno change · 5 games | 305 Pno change · 5 games |
| May 2026 | 309 P5 games | 305 P5 games |
| Apr 2026 | — | — |
| Mar 2026 | — | — |
| Feb 2026 | — | — |
| Jan 2026 | — | — |
| Dec 2025 | — | — |