| 4/16/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Results |
| 4/23/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Rain Out |
| 4/30/2021 | WISSOTA Mod Four, Micro Sprints, WISSOTA Super Stock | | Results |
| 5/7/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Canceled |
| 5/14/2021 | WISSOTA Mod Four, Micro Sprints, WISSOTA Super Stock | | Results |
| 5/21/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Results |
| 5/28/2021 | WISSOTA Late Model: Wissota Late Model Challenge Series | | Results |
| 6/4/2021 | WISSOTA Mod Four, Micro Sprints, WISSOTA Super Stock | | Results |
| 6/11/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Results |
| 6/18/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Results |
| 6/24/2021 | | | Details |
| 7/2/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Dropped |
| 7/9/2021 | Vintage Modifieds: Northern Vintage Stockcar Racers WISSOTA Mod Four, Vintage Full Body Stock Cars, WISSOTA Super Stock | | Results |
| 7/16/2021 | | | Results |
| 7/23/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Results |
| 7/30/2021 | WISSOTA Mod Four, Micro Sprints | | Results |
| 8/6/2021 | WISSOTA Mod Four, Micro Sprints, WISSOTA Super Stock | | Results |
| 8/13/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Results |
| 8/20/2021 | Vintage Modifieds: Northern Vintage Stockcar Racers WISSOTA Mod Four, Vintage Full Body Stock Cars, WISSOTA Super Stock | | Rain Out |
| 8/27/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Canceled |
| 9/3/2021 | WISSOTA Mod Four, WISSOTA Super Stock | | Rain Out |