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| 4/30/2021 | Dacotah Speedway - Mandan, ND Dacotah Speedway Season Opener Hobby Stocks, Semi-Pro Legends, Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Robert Sigman (Semi-Pro Legends) | 4th | - | - | 17th |
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| 5/1/2021 | Southwest Speedway - Dickinson, ND Season Opener Hobby Stocks, Semi-Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Sigman (Semi-Pro Legends) | 6th | - | - | 13th |
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| 5/14/2021 | Dacotah Speedway - Mandan, ND Mandan Dirt Series Hobby Stocks, Semi-Pro Legends, Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Robert Sigman (Semi-Pro Legends) | 5th | - | - | 13th |
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| 5/15/2021 | Southwest Speedway - Dickinson, ND Regular Night Hobby Stocks, Semi-Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Sigman (Semi-Pro Legends) | 2nd | - | - | 24th |
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| 9/24/2021 | Jamestown Speedway - Jamestown, ND 50th Annual Jamestown Stock Car Stampede B Modifieds, Semi-Pro Legends, Pure Stock, IMCA Modified, IMCA Northern SportMod, WISSOTA Midwest Mods, WISSOTA Late Model, WISSOTA Street Stock, Junior Slingshots | Results | | Robert Sigman (Semi-Pro Legends) | 7th | - | - | - |
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| 9/25/2021 | Jamestown Speedway - Jamestown, ND 50th Annual Jamestown Stock Car Stampede B Modifieds, Semi-Pro Legends, Pure Stock, IMCA Modified, IMCA Northern SportMod, WISSOTA Midwest Mods, WISSOTA Late Model, WISSOTA Street Stock, Junior Slingshots | Results | | Robert Sigman (Semi-Pro Legends) | 5th | - | 7th | - |
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| 10/1/2021 | Dacotah Speedway - Mandan, ND Oktoberfest - Night 1 Hobby Stocks, Non-Winged Sprints, Semi-Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact, WISSOTA Street Stock | Results | | Robert Sigman (Semi-Pro Legends) | 8th | - | - | - |
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| 10/2/2021 | Dacotah Speedway - Mandan, ND Oktoberfest - Night 2 Hobby Stocks, Non-Winged Sprints, Semi-Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact, WISSOTA Street Stock | Results | | Robert Sigman (Semi-Pro Legends) | - | - | 5th | - |
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