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| 4/2/2021 | Winston Speedway - Rothbury, MI Player Hater Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks, Dirt Late Models, Hornets, Mini Wedge, IMCA Modified | Results | | Dover Singleton (Asphalt Mini Stocks) | 6th | - | - | 4th |
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| 4/3/2021 | Winston Speedway - Rothbury, MI Player Hater Asphalt Mini Stocks, Stock Cars, Sportsmans, B Modifieds, Street Stocks, Dirt Late Models, Hornets, Mini Wedge, IMCA Modified | Results | | Dover Singleton (B Modifieds) | - | - | - | - |
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| 4/17/2021 | Thunderbird Raceway - Muskegon, MI Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 4th | - | - | 13th |
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| 4/30/2021 | Winston Speedway - Rothbury, MI Full Show DIRTcar Sport Compact, Sportsmans, Street Stocks, Dirt Late Models, Hornets, Mini Wedge, IMCA Modified | Results | | Dover Singleton (DIRTcar Sport Compact) | 5th | - | - | 9th |
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| 5/1/2021 | Thunderbird Raceway - Muskegon, MI Full Show Plus $400 to win Cyber Stocks Presented by RC Machine Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 4th | - | - | 9th |
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| 5/8/2021 | Thunderbird Raceway - Muskegon, MI Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 2nd | - | - | - |
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| 5/14/2021 | Winston Speedway - Rothbury, MI IMCA Fast Shaft $1000.00 to win and Full Show Asphalt Mini Stocks, Stock Cars, Sportsmans, Street Stocks, Dirt Late Models, Hornets, Mini Wedge, IMCA Modified | Results | | Dover Singleton (Asphalt Mini Stocks) | 3rd | - | - | 6th |
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| 5/15/2021 | Thunderbird Raceway - Muskegon, MI IMCA Modifieds $1000 to win presented by Deb's Cafe & Full Show Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | - | - | - | - |
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| 5/22/2021 | Thunderbird Raceway - Muskegon, MI Allstar Performance Street Stock Challenge $750 to win & Full Show Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 3rd | - | - | 13th |
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| 5/29/2021 | Thunderbird Raceway - Muskegon, MI Salute to Veterans $1000 to win IMCA Modfieds & Full Show Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 5th | - | - | - |
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| 6/5/2021 | Thunderbird Raceway - Muskegon, MI Midwest Dirt $500 to Win & Full Show Sport Compact: Midwest Compact Touring Series Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws | Results | | Dover Singleton (Sport Compact) | 7th (DNF) | - | 17th | - |
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| 6/12/2021 | Thunderbird Raceway - Muskegon, MI IMCA Modified Summer Series $1000 to win Presented by JJ Motorsports plus full show Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 9th | - | - | 14th |
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| 7/3/2021 | Thunderbird Raceway - Muskegon, MI Lightning Sprints: Great Lakes Lightning Sprints Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 6th | - | - | 13th |
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| 7/10/2021 | Thunderbird Raceway - Muskegon, MI $500 to win Warriors Presented by NIX's Trucking-$1000 to Win IMCA Modified Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 5th | - | - | 10th (DNF) |
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| 7/24/2021 | Thunderbird Raceway - Muskegon, MI Street Stock Mid Summer Shootout, $500 to win Cyber Stocks, Michigan Automotive Fan Club Night Dirt Super Late Models, Factory Stocks, Stock Cars, A Modifieds, Pro Late Model, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Dover Singleton (Sport Compact) | 8th | - | 8th | - |
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