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| 4/24/2021 | Rapid Speedway - Rock Rapids, IA Test N Tune 360 Sprints - Winged, DIRTcar Late Models, DIRTcar Sportsmans, Economy Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, IMCA RaceSaver Sprint Car | Results | | Spencer Sprock (USRA Hobby Stocks) | - | - | - | - |
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| 4/30/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + 305 Sprints DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, IMCA RaceSaver Sprint Car | Results | | Spencer Sprock (USRA Hobby Stocks) | 5th | - | 3rd | 13th |
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| 5/7/2021 | Rapid Speedway - Rock Rapids, IA Rapid Speedway - WEST Dirt Super Late Models: SLMR Late Model Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | 7th (DNF) | - | 8th | - |
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| 5/21/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + 360 Sprints 360 Sprints - Winged: Midwest Sprint Touring Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | 7th | - | 9th (DNF) | - |
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| 6/4/2021 | Rapid Speedway - Rock Rapids, IA Mark Lloyd Memorial DIRTcar Late Models, DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | 6th | - | - | 20th (DNF) |
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| 6/18/2021 | Rapid Speedway - Rock Rapids, IA MSTS at Rapid Speedway with Power Series 360 Sprints - Winged: Midwest Sprint Touring Series with Midwest Power Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | DNS | - | - | DNS |
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| 6/25/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + A-Mod Special (Kids with Cancer Night) DIRTcar Sportsmans, A Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | 7th | - | - | 17th (DNF) |
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| 7/9/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + 305 Sprints DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, IMCA RaceSaver Sprint Car | Results | | Spencer Sprock (USRA Hobby Stocks) | 8th | - | 4th | 16th |
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| 7/16/2021 | Rapid Speedway - Rock Rapids, IA B-Mod Special DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | 6th | - | - | 15th |
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| 7/23/2021 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | 5th | - | - | 17th (DNF) |
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| 8/6/2021 | Rapid Speedway - Rock Rapids, IA Dave Mulder Memorial DIRTcar Sportsmans, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Spencer Sprock (USRA Hobby Stocks) | 6th | - | 5th | 15th |
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| 10/9/2021 | Murray County Speedway - Slayton, MN Hub City Rumble - Repairable Vehicles.com Tri State Late Models Dirt Late Models: Tri-State Late Models Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Spencer Sprock (Hobby Stocks) | 6th (DNF) | - | 12th (DNF) | - |
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