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| 8/7/2020 | Park Jefferson International Speedway - Jefferson, SD 7th Annual J&J Fitting Iron Cup Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, IMCA Modified | Results | | Karl Brewer (Stock Cars) | 5th | - | - | DNS |
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| 8/8/2020 | Park Jefferson International Speedway - Jefferson, SD 7th Annual J&J Fitting Iron Cup-IState Truck Centers Championship Night 305 Sprints - Winged, Hobby Stocks, Stock Cars, B Modifieds, Hornets, IMCA Modified | Results | | Karl Brewer (Stock Cars) | 1st | - | - | 7th |
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| 8/16/2020 | Interstate Speedway (SD) - Jefferson, SD Racers for Autism Weekly Racing Series IMCA Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Karl Brewer (Stock Cars) | 7th (DNF) | - | - | 1st |
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| 8/22/2020 | Park Jefferson International Speedway - Jefferson, SD MPS, MSTS, & NE 360 sprints 360 Sprints - Winged: Malvern Bank 360 Sprints with Midwest Sprint Touring Series, Nebraska 360 sprints, Midwest Power Series Dirt Late Models: Tri-State Late Models 305 Sprints - Winged, Hobby Stocks, Stock Cars | Results | | Karl Brewer (Stock Cars) | 3rd | - | - | 8th (DNF) |
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| 10/2/2020 | Interstate Speedway (SD) - Jefferson, SD 2nd Annual South Dakota Nationals Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Karl Brewer (Stock Cars) | 6th | - | - | 5th |
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| 10/3/2020 | Interstate Speedway (SD) - Jefferson, SD South Dakota Nationals Championship 2020 Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Karl Brewer (Stock Cars) | - | - | - | 3rd |
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