| | Heat | Dash | B Feature | A Feature |
|---|
|
|---|
| 8/13/2021 | Red Cedar Speedway - Menomonie, WI Structural Buildings WISSOTA Late Model Challenge Series WISSOTA Late Model: Wissota Late Model Challenge Series WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Brent Prochnow (WISSOTA Modifieds) | 6th | - | - | 10th |
|
| 9/24/2021 | Red Cedar Speedway - Menomonie, WI 41st Annual Punky Manor Challenge of Champions Night #1 Heats WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Brent Prochnow (WISSOTA Modifieds) | 6th | - | - | - |
|
| 9/25/2021 | Red Cedar Speedway - Menomonie, WI 41st Annual Punky Manor Challenge Of Champions Features & Hall of Fame Induction WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Brent Prochnow (WISSOTA Modifieds) | 6th | - | 4th | 23rd (DNF) |
|
| 10/1/2021 | ABC Raceway - Ashland, WI Red Clay Classic A Modifieds, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Super Stock | Results | | Brent Prochnow (WISSOTA Modifieds) | 8th | - | 7th | - |
|