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| 5/5/2018 | Southern Illinois Raceway - Marion, IL Weekly Points Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Junior Sprints, Dwarf, 600cc Modifieds, Sportsman Micros | Results | | Nathan Smith (600cc Modifieds) | 9th (DNF) | - | - | 8th |
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| 6/2/2018 | Southern Illinois Raceway - Marion, IL Weekly Points Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Junior Sprints, Dwarf, 600cc Modifieds, Sportsman Micros | Results | | Nathan Smith (600cc Modifieds) | 5th | - | - | 6th |
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| 6/30/2018 | Southern Illinois Raceway - Marion, IL Weekly Points/Mod-lite Special Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Junior Sprints, Dwarf, 600cc Modifieds, Sportsman Micros | Results | | Nathan Smith (600cc Modifieds) | 8th | - | - | 3rd |
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| 9/15/2018 | Southern Illinois Raceway - Marion, IL Chase night 3 Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Junior Sprints, Dwarf, 600cc Modifieds, Sportsman Micros | Results | | Nathan Smith (600cc Modifieds) | 5th | - | - | 7th |
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| 9/29/2018 | Southern Illinois Raceway - Marion, IL Chase night 5 Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Junior Sprints, Dwarf, 600cc Modifieds, Sportsman Micros | Results | | Nathan Smith (600cc Modifieds) | 7th | - | - | 8th |
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| 10/6/2018 | Southern Illinois Raceway - Marion, IL Chase makeup/Closer Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Junior Sprints, Dwarf, 600cc Modifieds, Sportsman Micros | Results | | Nathan Smith (600cc Modifieds) | 8th | - | - | 9th |
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