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| 5/6/2021 | Kossuth County Speedway - Algona, IA Season Opener B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 7th (DNF) | - | - | 15th (DNF) |
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| 5/25/2021 | Jackson Motorplex - Jackson, MN Bank Midwest IMCA Series presented by Zac's Trailer Sales Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Darin Johnson (Hobby Stocks) | 5th | - | - | 17th |
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| 6/3/2021 | Kossuth County Speedway - Algona, IA Vintage Racers & Weekly IMCA Racing B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 1st | - | - | 2nd |
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| 6/7/2021 | Clay County Fair Speedway - Spencer, IA Cole Millard Memorial IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 3rd | - | - | 11th |
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| 6/29/2021 | Clay County Fair Speedway - Spencer, IA Midwest Madness Tour IMCA Modified: Midwest Madness Tour IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 9th (DNF) | - | 5th | - |
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| 7/28/2021 | Clay County Fair Speedway - Spencer, IA Hunting with Heroes Salute to Veterans Night #1 A Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 7th | - | - | 10th |
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| 7/29/2021 | Kossuth County Speedway - Algona, IA Hunting with Heroes Salute to Veterans Night A Modifieds, B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 3rd | - | - | 11th |
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| 8/2/2021 | Clay County Fair Speedway - Spencer, IA The Clay County Clash A Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 5th | - | - | 12th |
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| 9/5/2021 | Boone Speedway - Boone, IA Wild Rose Casino Prelude to the Super Nationals IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact, Pro Dwarf, IMCA Mod Lite | Results | | Darin Johnson (IMCA Hobby Stock) | 6th | - | 9th | - |
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| 9/6/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Late Models, IMCA Northern SportMod, IMCA Hobby Stock | Results | | Darin Johnson (IMCA Hobby Stock) | 4th | - | - | 19th |
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| 9/7/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Vintage Modifieds, Generic 1, IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact | Results | | Darin Johnson (IMCA Hobby Stock) | 8th | - | 6th | - |
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