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| 5/14/2021 | Fayette County Speedway - West Union, IA Weekly Points Race 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 7th (DNF) | - | - | 15th (DNF) |
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| 6/4/2021 | Fayette County Speedway - West Union, IA Weekly Points Race - Sponsored by Pioneer & United Beverage 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 5th (DNF) | - | - | 13th |
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| 6/11/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by Alpha Tap ~ $1000 to win BMods 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 6th | - | - | 6th |
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| 6/18/2021 | Fayette County Speedway - West Union, IA Weekly Points Race 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 7th | - | - | 11th (DNF) |
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| 6/19/2021 | Independence Motor Speedway - Independence, IA Crawford Farms Hall of Fame Night DIRTcar Sport Compact, Hobby Stocks, Stock Cars, A Modifieds, Stock Non-Wing, B Modifieds, Dirt Late Models | Results | | Karson Crooks (Stock Non-Wing) | 3rd | - | - | 10th |
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| 7/2/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by The Place in Protivin ~ $100 extra to each feature winner 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 3rd | - | - | 7th |
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| 7/13/2021 | Winneshiek Raceway - Decorah, IA Winneshiek County Fair Race USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners, Mod Lites | Results | | Karson Crooks (Mod Lites) | 5th | - | - | 12th (DNF) |
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| 7/16/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by KAR Auto & No Limit Diesel 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 4th | - | - | 11th (DNF) |
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| 8/13/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by Chase Trucking ~ Hall of Fame - $1000 to win Hobby Stocks 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 4th (DNF) | - | - | 11th (DNF) |
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| 8/20/2021 | Fayette County Speedway - West Union, IA 2021 Season Championship ~ Sponsored by Appliance Plus of West Union 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Karson Crooks (600cc Modifieds) | 4th | - | - | 11th (DNF) |
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