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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 | | Kelly Heiser (Semi-Pro Legends) | 7th | - | 7th | - |
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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 | | Kelly Heiser (Semi-Pro Legends) | 4th | - | - | 20th |
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| 5/7/2021 | Dacotah Speedway - Mandan, ND Mandan Dirt Series + 2020 Awards Night Hobby Stocks, Semi-Pro Legends, Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Kelly Heiser (Semi-Pro Legends) | 8th | - | 11th | - |
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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 | | Kelly Heiser (Semi-Pro Legends) | 9th | - | 5th | 20th |
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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 | | Kelly Heiser (Semi-Pro Legends) | 6th | - | - | 16th |
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| 5/21/2021 | Dacotah Speedway - Mandan, ND Mandan Dirt Series Hobby Stocks, Semi-Pro Legends, Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Kelly Heiser (Semi-Pro Legends) | 8th | - | - | 18th |
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| 5/28/2021 | Dacotah Speedway - Mandan, ND Military Appreciation Night + Mandan Dirt Series Hobby Stocks, Semi-Pro Legends, Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Kelly Heiser (Semi-Pro Legends) | 9th | - | - | 26th |
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| 6/25/2021 | McLean County Speedway - Underwood, ND Mid-Summer Chaos sponsored by Dakota West Credit Union Non-Winged Sprints, Semi-Pro Legends, Generic 1, Sport Compact | Results | | Kelly Heiser (Semi-Pro Legends) | 4th | - | - | 9th |
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| 6/26/2021 | Southwest Speedway - Dickinson, ND Richard Jordan Memorial Hobby Stocks, Semi-Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Kelly Heiser (Semi-Pro Legends) | 6th | - | - | 11th |
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| 7/2/2021 | McLean County Speedway - Underwood, ND A-Mod Showdown 4.0 sponsored by Quality Dirtworks A Modifieds, B Modifieds, Street Stocks, Non-Winged Sprints, Semi-Pro Legends, Generic 1, IMCA Northern SportMod, IMCA Hobby Stock | Results | | Kelly Heiser (Semi-Pro Legends) | 4th | - | - | 12th |
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| 7/3/2021 | Southwest Speedway - Dickinson, ND Roughrider Days Race Hobby Stocks, Semi-Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Kelly Heiser (Semi-Pro Legends) | 8th | - | - | 13th |
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| 7/15/2021 | Dacotah Speedway - Mandan, ND Dakota Classic Modified Tour - Championship Night IMCA Modified: Dakota Classic Modified Tour Semi-Pro Legends, IMCA Stock Car | Results | | Kelly Heiser (Semi-Pro Legends) | 10th | - | 8th | - |
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| 7/23/2021 | Dacotah Speedway - Mandan, ND Mandan Dirt Series + Race of Champions Qualifier Hobby Stocks, Semi-Pro Legends, Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Kelly Heiser (Semi-Pro Legends) | 6th | - | - | 16th |
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| 7/24/2021 | Southwest Speedway - Dickinson, ND Regular Night Hobby Stocks, Semi-Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Kelly Heiser (Semi-Pro Legends) | 5th | - | - | 13th |
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| 7/30/2021 | Dacotah Speedway - Mandan, ND ND Governors Cup Auto Races - Night 1 410 Sprints - Winged: Northern Outlaw Sprint Association Hobby Stocks, Semi-Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Kelly Heiser (Semi-Pro Legends) | 10th | - | 14th | - |
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| 7/31/2021 | Dacotah Speedway - Mandan, ND ND Governors Cup Auto Races - Night 2 410 Sprints - Winged: Northern Outlaw Sprint Association Hobby Stocks, Semi-Pro Legends, IMCA Modified, IMCA Sport Compact, WISSOTA Street Stock | Results | | Kelly Heiser (Semi-Pro Legends) | 4th | - | - | 18th |
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