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| 9/5/2021 | Springfield Raceway - Springfield, MO KTTS 4 States Area Dirt Track Championship Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Brett Testerman (Dirt Late Models) | 4th | - | 5th | - |
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| 9/17/2021 | Springfield Raceway - Springfield, MO Midwest Sheetmetal Route 66 Showdown Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, A Modifieds, Midwest Modifieds, Limited Sport Mod | Results | | Brett Testerman (Dirt Late Models) | 4th | - | - | - |
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| 9/18/2021 | Springfield Raceway - Springfield, MO Midwest Sheetmetal Route 66 Showdown Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Brett Testerman (Dirt Late Models) | 8th | - | 11th (DNF) | - |
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| 9/25/2021 | Monett Motor Speedway - Monett, MO Fall Weekly Race 3 + Late Model DIRTcar Late Models, Stock Cars, Midwest Modifieds, B Modifieds, Street Stocks, Pure Stock | Results | | Brett Testerman (DIRTcar Late Models) | 6th | - | - | 6th | | Brett Testerman (Midwest Modifieds) | DNS | - | - | 11th |
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| 10/9/2021 | Monett Motor Speedway - Monett, MO Fall Weekly Race 4 Factory Stocks, Hobby Stocks, Stock Cars, Midwest Modifieds, B Modifieds, Street Stocks, Pure Stock | Results | | Brett Testerman (Midwest Modifieds) | 3rd | - | - | 2nd |
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| 10/30/2021 | Springfield Raceway - Springfield, MO CASH MONEY LATE MODELS BROUGHT TO YOU BY HAYDEN MACHINERY & WHEELER METALS Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Brett Testerman (Dirt Late Models) | 4th | - | - | 13th |
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| 11/19/2021 | Springfield Raceway - Springfield, MO CASEY'S PRESENTS TURKEY BOWL XV HEATS-B MOD, MW A CLASS, MW B CLASS, Legends/Pure Stock Full Show Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Brett Testerman (Midwest Modifieds) | 6th | - | - | - |
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| 11/20/2021 | Springfield Raceway - Springfield, MO CASEY'S PRESENTS TURKEY BOWL XV / HEATS & FEATURE Late Model , A Mod / B MAIN & A MAIN from Friday A Modifieds, Midwest Modifieds, Dirt Late Models, Pro Legends, Limited Sport Mod, USRA B-Mods | Results | | Brett Testerman (Midwest Modifieds) | - | - | 5th | - |
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