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| 5/23/2021 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Series IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Tom McKenzie (IMCA Stock Car) | 7th | - | - | 9th |
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| 5/30/2021 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Series IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Tom McKenzie (IMCA Stock Car) | 2nd | - | - | 8th (DNF) |
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| 6/20/2021 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Series IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Tom McKenzie (IMCA Stock Car) | 4th | - | - | 7th |
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| 6/27/2021 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Series IMCA Modified: Midwest Madness Tour IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Tom McKenzie (IMCA Stock Car) | 5th (DNF) | - | - | 8th |
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| 7/25/2021 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Tom McKenzie (IMCA Stock Car) | 4th | - | - | 7th |
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| 8/10/2021 | Park Jefferson International Speedway - Jefferson, SD J&J Fitting Iron Cup Night 2 B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Tom McKenzie (IMCA Stock Car) | 9th (DNF) | - | - | 17th (DNF) |
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| 8/14/2021 | Park Jefferson International Speedway - Jefferson, SD I State Truck Center IMCA Championship plus $2,000 to win Tri-State Late Models by Zeitner & Sons Dirt Late Models: Tri-State Late Models Hobby Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Tom McKenzie (IMCA Stock Car) | 7th | - | - | 8th |
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| 10/2/2021 | Interstate Speedway (SD) - Jefferson, SD SD Nationals IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Tom McKenzie (IMCA Stock Car) | 4th | - | - | 13th (DNF) |
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