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| 4/27/2018 | Park Jefferson International Speedway - Jefferson, SD South Dakota Sprint Car Nationals 360 Sprints - Winged: Malvern Bank 360 Sprints with Midwest Sprint Touring Series, Nebraska 360 sprints 305 Sprints - Winged: IMCA RaceSaver Sprints Stock Cars, B Modifieds, Hornets | Results | | Shaun Johnson (Stock Cars) | 5th | - | 6th | - |
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| 5/5/2018 | Park Jefferson International Speedway - Jefferson, SD SLMR-Super Late Models plus IMCA Weekly Racing-Road to the Iron Cup IMCA Sport Mods Dirt Super Late Models: SLMR Late Model Series 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Shaun Johnson (Stock Cars) | 6th | - | - | 15th |
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| 5/26/2018 | Park Jefferson International Speedway - Jefferson, SD 360 Sprints - Winged: Malvern Bank 360 Sprints with Midwest Sprint Touring Series, Nebraska 360 sprints 305 Sprints - Winged: IMCA RaceSaver Sprints Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Shaun Johnson (Stock Cars) | 6th | - | - | DNS |
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| 6/9/2018 | Park Jefferson International Speedway - Jefferson, SD IMCA Weekly Racing plus Neb Mod Lites (No IMCA Sprint Cars-Jackson Natl) Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Shaun Johnson (Stock Cars) | DNS | - | - | DNS |
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| 7/14/2018 | Park Jefferson International Speedway - Jefferson, SD IMCA Weekly Racing Kids Night presented by Z98 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Shaun Johnson (Stock Cars) | 8th (DNF) | - | - | DNS |
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