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| 4/30/2021 | Marshalltown Speedway - Marshalltown, IA LOCAL UAW 893 Cliff Chambers Memorial Dwarf, Dirt Pro Trucks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Bill Hildreth (IMCA Northern SportMod) | 5th | - | - | 18th (DNF) |
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| 5/6/2021 | Marshalltown Speedway - Marshalltown, IA Dale DeFrance Memorial Thursday Night Thunder Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Bill Hildreth (IMCA Northern SportMod) | 7th | - | - | 23rd (DNF) |
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| 7/2/2021 | Marshalltown Speedway - Marshalltown, IA Wolf Seeds Night Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Bill Hildreth (IMCA Northern SportMod) | 7th | - | - | DNS |
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| 7/16/2021 | Marshalltown Speedway - Marshalltown, IA Toby K's Hideaway $1,000.00 to Win IMCA Stock Cars Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Bill Hildreth (IMCA Northern SportMod) | 5th | - | - | 24th (DNF) |
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| 8/13/2021 | Marshalltown Speedway - Marshalltown, IA BHE Night $1,000.00 to Win IMCA Norther SportMods Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Bill Hildreth (IMCA Northern SportMod) | 7th | - | DNS | - |
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| 8/20/2021 | Marshalltown Speedway - Marshalltown, IA Toby K's Hideaway Night Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Bill Hildreth (IMCA Northern SportMod) | 6th | - | - | 13th (DNF) |
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| 9/16/2021 | Marshalltown Speedway - Marshalltown, IA 15th Annual World Nationals Practice Night IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Bill Hildreth (IMCA Northern SportMod) | - | - | - | - |
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