| 4/17/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 4/24/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Canceled |
| 5/1/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 5/8/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 5/15/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 5/22/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 5/29/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 6/5/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 6/12/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 6/19/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 6/25/2021 | IMCA Stock Cars by Woodie's Manufacturing, IMCA Sport Mods by DCM Supply, IMCA Modifieds by ABC Seamless, Expert Insulation IMCA Modifieds, IMCA Sport Mods | | Results |
| 6/26/2021 | IMCA Modifieds by ABC Seamless: Land of Ten Thousand Lakes 10K IMCA Stock Cars by Woodie's Manufacturing, IMCA Sport Mods by DCM Supply, Expert Insulation IMCA Modifieds, IMCA Sport Mods | | Results |
| 7/10/2021 | Vintage Modifieds: Northern Vintage Stockcar Racers IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Vintage Full Body Stock Cars, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 7/17/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 7/24/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 7/31/2021 | IMCA Stock Cars by Woodie's Manufacturing, Micro Sprints, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 8/7/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Rain Out |
| 8/14/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 8/21/2021 | Vintage Modifieds: Northern Vintage Stockcar Racers IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Vintage Full Body Stock Cars, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 8/28/2021 | IMCA Stock Cars by Woodie's Manufacturing, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Rain Out |
| 9/4/2021 | IMCA Stock Cars by Woodie's Manufacturing, Micro Sprints, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |
| 9/5/2021 | IMCA Stock Cars by Woodie's Manufacturing, Micro Sprints, WISSOTA Super Stock by Auto Value of Brainerd, WISSOTA Mod Four by Erlandson Epoxy, Expert Insulation IMCA Modifieds, IMCA Sport Mods, Seidel Tire & Auto IMCA Hobby Stocks, Kohl's Performance IMCA Sport Compacts | | Results |