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| 4/23/2021 | Lee County Speedway - Donnellson, IA Season Points Kick-Off IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 3rd | - | - | 8th |
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| 4/30/2021 | Lee County Speedway - Donnellson, IA Driver For 5 Qualifier IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 6th | - | - | 15th |
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| 5/7/2021 | Lee County Speedway - Donnellson, IA Buford Dozing & Excavating Weekly Points Night IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 6th | - | - | 16th |
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| 5/14/2021 | Lee County Speedway - Donnellson, IA Driver For 5 Qualifier IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 4th | - | - | 16th |
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| 5/29/2021 | 34 Raceway - West Burlington, IA DoneRight.TV Night - Draw Re-Draw Special 305 Sprints - Winged, Dirt Super Late Models, Stock Cars, A Modifieds, Dirt Late Models, Limited Sport Mod | Results | | Bob Cowman (Limited Sport Mod) | 7th | - | 7th | - |
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| 6/4/2021 | Lee County Speedway - Donnellson, IA 410 Sprints - Winged: MOWA-Midwest Open Wheel Association IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 4th | - | - | 12th |
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| 6/5/2021 | 34 Raceway - West Burlington, IA George's Lawnmower presents Hoker Trucking SLMR Late Model Series Dirt Super Late Models: SLMR Late Model Series Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Bob Cowman (Limited Sport Mod) | 5th | - | - | 9th |
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| 6/11/2021 | Lee County Speedway - Donnellson, IA Driver For 5 Qualifier IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 6th | - | - | 12th |
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| 6/12/2021 | 34 Raceway - West Burlington, IA Pepsi $5 Fan Appreciation Night Dirt Super Late Models, Stock Cars, A Modifieds, Dirt Late Models, 2WD Trucks, Limited Sport Mod, Sport Compact | Results | | Bob Cowman (Limited Sport Mod) | 5th | - | - | 8th |
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| 6/19/2021 | 34 Raceway - West Burlington, IA Hearth & Home Technologies Night 305 Sprints - Winged, Dirt Super Late Models, Stock Cars, A Modifieds, 2WD Trucks, Limited Sport Mod, Sport Compact | Results | | Bob Cowman (Limited Sport Mod) | 6th | - | - | 8th |
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| 7/2/2021 | Lee County Speedway - Donnellson, IA Pilot Grove Savings Bank Driver For 5 Qualifier IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 7th | - | - | 9th |
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| 7/3/2021 | Lee County Speedway - Donnellson, IA Drive For 5 Qualifier A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Bob Cowman (B Modifieds) | 3rd | - | - | 9th |
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| 7/23/2021 | Lee County Speedway - Donnellson, IA Conn Communication Weekly Points Night IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 8th | - | - | 14th |
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| 7/24/2021 | 34 Raceway - West Burlington, IA Sonny's Market Night 305 Sprints - Winged, Dirt Super Late Models, Stock Cars, A Modifieds, Dirt Late Models, Limited Sport Mod, Sport Compact | Results | | Bob Cowman (Limited Sport Mod) | 5th | - | - | 15th |
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| 8/6/2021 | Lee County Speedway - Donnellson, IA KQ92 Driver For 5 Qualifier Dirt Mini Trucks, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 5th | - | - | 11th |
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| 8/7/2021 | 34 Raceway - West Burlington, IA High 5 for Kids Night Presented by The New Mix 107.3 305 Sprints - Winged, Dirt Super Late Models, Stock Cars, A Modifieds, Dirt Late Models, Limited Sport Mod, Sport Compact | Results | | Bob Cowman (Limited Sport Mod) | 4th | - | - | 8th |
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| 8/20/2021 | Lee County Speedway - Donnellson, IA Sprint Invaders - Lee County Speedway 360 Sprints - Winged: Sprint Invaders IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 6th | - | - | 16th |
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| 8/21/2021 | 34 Raceway - West Burlington, IA Frontline Genetics Night featuring Sprint Invaders 360 Sprints - Winged: Sprint Invaders Dirt Super Late Models, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Bob Cowman (Limited Sport Mod) | 6th | - | - | 10th |
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| 8/27/2021 | Lee County Speedway - Donnellson, IA Golden Eagle Distributing Season Championship Night Vintage Full Body Stock Cars, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Bob Cowman (IMCA Northern SportMod) | 6th | - | - | 19th |
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| 8/28/2021 | 34 Raceway - West Burlington, IA Pepsi Season Championship - $5 Fan Appreciation 305 Sprints - Winged, Stock Cars, A Modifieds, Dirt Late Models, 2WD Trucks, Limited Sport Mod, Sport Compact | Results | | Bob Cowman (Limited Sport Mod) | DNS | - | - | 6th |
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