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| 4/17/2021 | Thunderbird Raceway - Muskegon, MI Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | David Grega (Factory Stocks) | 5th | - | - | 15th |
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| 5/1/2021 | Thunderbird Raceway - Muskegon, MI Full Show Plus $400 to win Cyber Stocks Presented by RC Machine Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | David Grega (Factory Stocks) | 6th | - | - | - |
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| 5/8/2021 | Thunderbird Raceway - Muskegon, MI Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | David Grega (Factory Stocks) | 3rd | - | - | - |
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| 5/15/2021 | Crystal Motor Speedway - Crystal, MI Relay for Life Fundraiser and Veterans Day - Free admission with ID Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, Junior 1 Lites Dirt Karts, Dirt Pro Trucks, Mini Wedge, Sport Compact | Results | | David Grega (Street Stocks) | 1st | - | - | 7th |
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| 6/12/2021 | Crystal Motor Speedway - Crystal, MI Lightning Sprints: Great Lakes Lightning Sprints Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, Dirt Pro Trucks, Sport Compact | Results | | David Grega (Street Stocks) | - | - | - | - |
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| 6/12/2021 | Thunderbird Raceway - Muskegon, MI IMCA Modified Summer Series $1000 to win Presented by JJ Motorsports plus full show Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | David Grega (Factory Stocks) | - | - | - | DNS |
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| 6/19/2021 | Crystal Motor Speedway - Crystal, MI Full Show - Sponsored by Carson City Lumber Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, Dirt Pro Trucks, Sport Compact | Results | | David Grega (Street Stocks) | 3rd | - | - | 20th (DNF) |
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| 7/3/2021 | Crystal Motor Speedway - Crystal, MI 360 Sprints - Winged: GLSS-Great Lakes Super Sprints Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, Junior 1 Lites Dirt Karts, Mini Wedge, Sport Compact | Results | | David Grega (Street Stocks) | 6th | - | 6th | - |
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| 7/31/2021 | Crystal Motor Speedway - Crystal, MI Lightning Sprints: Great Lakes Lightning Sprints Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, Junior 1 Lites Dirt Karts, Dirt Pro Trucks, Mini Wedge, Sport Compact | Results | | David Grega (Street Stocks) | 10th | - | 12th | - |
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| 8/7/2021 | Crystal Motor Speedway - Crystal, MI Full Show - Sponsored by H & H EXCAVATING Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, Junior 1 Lites Dirt Karts, Dirt Pro Trucks, Mini Wedge, Sport Compact | Results | | David Grega (Street Stocks) | 5th | - | - | 14th |
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