| | Heat | Dash | B Feature | A Feature |
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| 5/1/2021 | Plymouth Speedway - Plymouth, IN Cabin Fever - Season Opener DIRTcar UMP Modifieds, Asphalt Mini Stocks, Super Sports, Stock Non-Wing, Street Stocks | Results | | William Harrison (Super Sports) | 6th | - | - | 5th |
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| 6/12/2021 | Plymouth Speedway - Plymouth, IN 3rd Annual Charlie Poague Memorial Race Presented by ILVDIRT DIRTcar UMP Modifieds, Super Sports, Street Stocks | Results | | William Harrison (Super Sports) | 8th | - | - | - |
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| 7/9/2021 | Hartford Speedway - Hartford, MI 360 Sprints - Winged: GLSS-Great Lakes Super Sprints 410 Sprints - Non-Winged: Great Lakes Traditional Sprints Hobby Stocks, Stock Cars | Results | | William Harrison (Stock Cars) | 3rd | - | - | 7th |
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| 7/31/2021 | Plymouth Speedway - Plymouth, IN Saturday Night Event plus NRA Sprints 360 Sprints - Winged: NRA Sprint Invaders Super Sports, Stock Non-Wing, Street Stocks | Results | | William Harrison (Super Sports) | 2nd | - | - | 5th |
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| 9/3/2021 | Hartford Speedway - Hartford, MI 410 Sprints - Winged: FASTonDIRT DIRTcar UMP Modifieds, Hobby Stocks, Stock Cars | Results | | William Harrison (Stock Cars) | 4th | - | - | 6th |
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| 10/9/2021 | Hartford Speedway - Hartford, MI Midwest Compact Dirt Series Hobby Stocks, Stock Cars, DIRTcar 4 Cylinders | Results | | William Harrison (Stock Cars) | 5th | - | - | - |
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