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| 5/1/2021 | Shelby County Speedway - Harlan, IA May Day Mayhem Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 8th (DNF) | - | - | 13th (DNF) |
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| 5/15/2021 | Shelby County Speedway - Harlan, IA Pizza Ranch presents The James Buwalda Memorial w/ Kids Candy Dash Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Vintage Full Body Stock Cars, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 6th | - | - | 14th |
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| 5/22/2021 | Shelby County Speedway - Harlan, IA Coca-Cola night Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | DNS | - | - | DNS |
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| 5/29/2021 | Shelby County Speedway - Harlan, IA Eagles Landing presents Military and First Responders Night Hobby Stocks, Stock Cars, B Modifieds, Dirt Late Models, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 3rd | - | - | 9th |
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| 6/5/2021 | Shelby County Speedway - Harlan, IA Race for Cancer Awareness Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 6th | - | - | 10th |
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| 6/12/2021 | Shelby County Speedway - Harlan, IA Shelby County Speedway - WEST Dirt Super Late Models: SLMR Late Model Series Hobby Stocks, Stock Cars, B Modifieds, Non-Winged Sprints | Results | | Dean Devereaux (Hobby Stocks) | 5th | - | - | 8th |
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| 6/19/2021 | Shelby County Speedway - Harlan, IA The BuckSnort presents Father's Day Fleet Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 4th | - | - | 7th |
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| 7/13/2021 | Shelby County Speedway - Harlan, IA Dale Swanson Memorial Hobby Stocks, Stock Cars, A Modifieds, B Modifieds | Results | | Dean Devereaux (Hobby Stocks) | 6th | - | - | 19th |
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| 7/17/2021 | Shelby County Speedway - Harlan, IA Shelby County Fair Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 7th (DNF) | - | - | 12th (DNF) |
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| 9/24/2021 | Shelby County Speedway - Harlan, IA Tiny Lund Night 1 / Battle of the Compacts on Hwy 59 Hobby Stocks, Stock Cars, B Modifieds, Dirt Late Models, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 8th | - | 10th | - |
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| 9/25/2021 | Shelby County Speedway - Harlan, IA Tiny Lund Night 2 / Dirt Truck Racing Assoc. Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Dirt Pro Trucks, Sport Compact | Results | | Dean Devereaux (Hobby Stocks) | 9th | - | 14th | - |
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