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| 5/25/2018 | Dacotah Speedway - Mandan, ND Mandan Dirt Series - Season Opener Hobby Stocks, A Modifieds, Semi-Pro Legends, Sport Compact, WISSOTA Street Stock | Results | | Michael Hartigan (Semi-Pro Legends) | 8th | - | - | 13th |
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| 6/8/2018 | Dacotah Speedway - Mandan, ND 40/40 Iron Man Challenge Hobby Stocks, A Modifieds, Semi-Pro Legends, Sport Compact, WISSOTA Street Stock | Results | | Michael Hartigan (Semi-Pro Legends) | 8th | - | - | 19th |
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| 6/9/2018 | Southwest Speedway - Dickinson, ND Regular Race Hobby Stocks, A Modifieds, Semi-Pro Legends, Limited Sport Mod, Sport Compact, WISSOTA Street Stock | Results | | Michael Hartigan (Semi-Pro Legends) | 6th | - | - | 14th |
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| 6/15/2018 | Red River Valley Speedway - West Fargo, ND Meet & Greet the IMCA Sport Mods | Lightning Sprints Hobby Stocks, Stock Cars, A Modifieds, Semi-Pro Legends, Lightning Sprints, Limited Sport Mod | Results | | Michael Hartigan (Semi-Pro Legends) | 8th | - | - | 7th |
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| 6/21/2018 | Norman County Raceway - Ada, MN Norman County Fair - Battle of the Wings! 410 Sprints - Winged: Northern Outlaw Sprint Association Hobby Stocks, Semi-Pro Legends, Limited Sport Mod | Results | | Michael Hartigan (Semi-Pro Legends) | 7th | - | - | 9th |
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| 6/22/2018 | Red River Valley Speedway - West Fargo, ND Meet & Greet the IMCA Stock Cars | Fireworks Hobby Stocks, Stock Cars, A Modifieds, Semi-Pro Legends, Limited Sport Mod | Results | | Michael Hartigan (Semi-Pro Legends) | 5th | - | - | 12th |
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| 7/20/2018 | Dacotah Speedway - Mandan, ND Mandan Dirt Series Hobby Stocks, A Modifieds, Semi-Pro Legends, Sport Compact, WISSOTA Street Stock | Results | | Michael Hartigan (Semi-Pro Legends) | 9th | - | - | 17th (DNF) |
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| 7/21/2018 | Southwest Speedway - Dickinson, ND Wissota Race Of Champions Hobby Stocks, A Modifieds, Semi-Pro Legends, Limited Sport Mod, WISSOTA Street Stock | Results | | Michael Hartigan (Semi-Pro Legends) | 7th | - | - | 11th |
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| 7/28/2018 | Dacotah Speedway - Mandan, ND North Dakota Governor's Cup - Night 2 410 Sprints - Winged, Hobby Stocks, A Modifieds, Semi-Pro Legends, Sport Compact, WISSOTA Street Stock | Results | | Michael Hartigan (Semi-Pro Legends) | 5th | - | - | 14th |
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| 8/10/2018 | Dacotah Speedway - Mandan, ND Mandan Dirt Series Hobby Stocks, A Modifieds, Semi-Pro Legends, Sport Compact, WISSOTA Street Stock | Results | | Michael Hartigan (Semi-Pro Legends) | 8th | - | - | 13th |
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| 8/25/2018 | Southwest Speedway - Dickinson, ND Championship Night Hobby Stocks, A Modifieds, Limited Sport Mod, Sport Compact, WISSOTA Street Stock | Results | | Michael Hartigan (A Modifieds) | 7th | - | - | 11th (DNF) |
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