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| 8/15/2021 | Mason City Motor Speedway - Mason City, IA B-Mod Challenge Presented by Kabrick Distributing 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars | Results | | Dean Mahlstedt (USRA Modifieds) | 3rd | - | - | 6th |
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| 8/22/2021 | Mason City Motor Speedway - Mason City, IA Driver Appreciation Night 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Dean Mahlstedt (USRA Modifieds) | 3rd | - | - | 7th |
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| 8/28/2021 | Hamilton County Speedway - Webster City, IA Karl Chevrolet Driver Appreciation Night A Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Dean Mahlstedt (USRA Modifieds) | 5th | - | - | DNS |
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| 9/4/2021 | Deer Creek Speedway - Spring Valley, MN 16th Annual USMTS Labor Day Duel A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Late Models, USRA Stock Cars | Results | | Dean Mahlstedt (A Modifieds) | 10th | - | 16th | - |
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| 10/3/2021 | Mason City Motor Speedway - Mason City, IA Fall Frenzy USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Dean Mahlstedt (USRA Modifieds) | 6th | - | - | 3rd |
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| 10/16/2021 | Mason City Motor Speedway - Mason City, IA Five Star Classic 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Dean Mahlstedt (USRA Modifieds) | 2nd | - | - | 11th |
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| 10/17/2021 | Mason City Motor Speedway - Mason City, IA Five Star Classic 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Dean Mahlstedt (USRA Modifieds) | 4th | - | - | 8th |
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| 10/23/2021 | Hamilton County Speedway - Webster City, IA Fall Futurity Night #2 Dirt Super Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Dean Mahlstedt (USRA Modifieds) | 1st | - | - | 7th |
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