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| 5/26/2018 | Crystal Motor Speedway - Crystal, MI MICHIGAN TRADITIONAL SPRINTS 410 Sprints - Non-Winged: Great Lakes Traditional Sprints Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, Mini Wedge, Sport Compact | Results | | Mark Irwin (410 Sprints - Non-Winged) | 4th | - | - | 15th |
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| 6/2/2018 | Silver Bullet Speedway - Owendale, MI Tri County Equipment Diggin The Dirt Sprint Car Showdown & Autograph Night Asphalt Mini Stocks, Hobby Stocks, Stock Cars, Sportsmans, B Modifieds, Non-Winged Sprints, Mini Wedge | Results | | Mark Irwin (Non-Winged Sprints) | 2nd | - | - | 9th (DNF) |
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| 6/16/2018 | Silver Bullet Speedway - Owendale, MI Tri County Equipment Diggin The Dirt Sprint Car Showdown Asphalt Mini Stocks, Hobby Stocks, Stock Cars, Sportsmans, Non-Winged Sprints, Mini Wedge | Results | | Mark Irwin (Non-Winged Sprints) | 3rd | - | - | 6th |
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| 7/28/2018 | Silver Bullet Speedway - Owendale, MI Tri County Equipment Diggin The Dirt Sprint Car Showdow Asphalt Mini Stocks, Stock Cars, Sportsmans, B Modifieds, Non-Winged Sprints, Mini Wedge | Results | | Mark Irwin (Non-Winged Sprints) | 4th | - | - | 8th |
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| 8/3/2018 | I-96 Speedway - Lake Odessa, MI MTS Sprint Cars & Salsa Taste Off Night 410 Sprints - Non-Winged: Great Lakes Traditional Sprints Sportsmans, B Modifieds, Street Stocks, Hornets, Dirt Pro Trucks, Mini Wedge, Mini Outlaws | Results | | Mark Irwin (410 Sprints - Non-Winged) | 4th | - | - | 11th |
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| 8/4/2018 | Thunderbird Raceway - Muskegon, MI MTS Sprint Series and Junkyard 100 Enduro DIRTcar Late Models, Factory Stocks, Stock Cars, B Modifieds, Economy Sprints - Non Winged, Enduro, Mini Wedge, Mini Outlaws, Sport Compact | Results | | Mark Irwin (Economy Sprints - Non Winged) | 5th | - | - | - |
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| 8/25/2018 | Silver Bullet Speedway - Owendale, MI Asphalt Mini Stocks, Hobby Stocks, Stock Cars, B Modifieds, Non-Winged Sprints, Mini Wedge | Results | | Mark Irwin (Non-Winged Sprints) | 1st | - | - | 8th |
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| 9/15/2018 | Crystal Motor Speedway - Crystal, MI GREAT LAKES NATIONALS Dirt Super Late Models, Hobby Stocks, A Modifieds, Street Stocks, Dirt Late Models, 410 Sprints - Non-Winged, Junior 1 Lites Dirt Karts, Dirt Pro Trucks, Mini Wedge, Sport Compact | Results | | Mark Irwin (410 Sprints - Non-Winged) | 4th | - | - | 14th |
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