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| 5/14/2021 | Murray County Speedway - Slayton, MN Opening Night of 2021 Season Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 1st | - | - | 1st |
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| 5/21/2021 | Murray County Speedway - Slayton, MN Regular Night Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 1st | - | - | 3rd |
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| 6/4/2021 | Murray County Speedway - Slayton, MN Regular Night Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 1st | - | - | 1st |
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| 6/5/2021 | Worthington Speedway - Worthington, MN Regular Night Hobby Stocks, Stock Cars, Sportsmans, A Modifieds, B Modifieds, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Cody Koster (Sportsmans) | 1st | - | - | 8th (DNF) |
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| 6/11/2021 | Murray County Speedway - Slayton, MN Regular Night - Sponsored by Pizza Ranch of Slayton Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 2nd | - | - | 6th |
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| 6/18/2021 | Murray County Speedway - Slayton, MN Regular Night - Sponsored by Rrowdy's Radiator & Diesen Repair and Avoca Spray Service of Slayton Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 3rd | - | - | 2nd |
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| 6/25/2021 | Murray County Speedway - Slayton, MN $1500 Stock Car Special with Limited Late Models Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Vintage Full Body Stock Cars, Sport Compact, Dirt Limited Late Models | Results | | Cody Koster (Factory Stocks) | 4th | - | - | 6th |
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| 7/2/2021 | Murray County Speedway - Slayton, MN Emergency Services Night with Late Model Street Stocks Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Cody Koster (Factory Stocks) | 2nd | - | - | 5th |
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| 7/16/2021 | Murray County Speedway - Slayton, MN Hall of Fame Night & Swede Anderson/Gary Muecke Mod Special Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 8th | - | - | 2nd |
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| 7/23/2021 | Murray County Speedway - Slayton, MN Regular Night with IMCA 305 Sprints 305 Sprints - Winged, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 2nd | - | - | 2nd |
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| 8/6/2021 | Murray County Speedway - Slayton, MN Regular Night - Sponsored by Van't Hof Milk Hauling Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 2nd | - | - | 11th (DNF) |
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| 8/13/2021 | Murray County Speedway - Slayton, MN Jerry "Mahoney" Gronewold Hobby Special, plus Vintage Race Shirt Night Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Factory Stocks) | 3rd | - | - | 3rd |
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| 9/19/2021 | Worthington Speedway - Worthington, MN King Turkey Day Races Hobby Stocks, Stock Cars, Sportsmans, A Modifieds, B Modifieds, Sport Compact | Results | | Cody Koster (Sportsmans) | 5th | - | - | 5th |
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