| | Heat | Dash | B Feature | A Feature |
|---|
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| 5/1/2015 | Corrigan Oil Speedway - Mason, MI | Results | | Mark Irwin (410 Sprints - Non-Winged) | - | - | - | 8th |
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| 5/15/2015 | Corrigan Oil Speedway - Mason, MI | Results | | Mark Irwin (410 Sprints - Non-Winged) | - | - | - | 7th |
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| 7/10/2015 | Winston Speedway - Rothbury, MI 410 Sprints - Non-Winged: Great Lakes Traditional Sprints with Ontario Topless Sprint Cars-OTS DIRTcar Late Models, Factory Stocks, Stock Cars, Street Stocks, Hornets | Results | | Mark Irwin (410 Sprints - Non-Winged) | 6th | - | - | - |
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| 7/11/2015 | Merritt Speedway - Merritt, MI 410 Sprints - Non-Winged: Great Lakes Traditional Sprints with Ontario Topless Sprint Cars-OTS DIRTcar Late Models, Factory Stocks, Sportsmans, Dirt Pro Trucks | Results | | Mark Irwin (410 Sprints - Non-Winged) | 5th | - | - | 11th |
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| 8/7/2015 | Corrigan Oil Speedway - Mason, MI | Results | | Mark Irwin (410 Sprints - Non-Winged) | - | - | - | 10th |
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| 8/15/2015 | Crystal Motor Speedway - Crystal, MI 410 Sprints - Non-Winged: Great Lakes Traditional Sprints with Ontario Topless Sprint Cars-OTS | Results | | Mark Irwin (410 Sprints - Non-Winged) | - | - | - | 5th |
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| 8/22/2015 | Merritt Speedway - Merritt, MI 360 Sprints - Winged: SOD-Sprints On Dirt (360s) DIRTcar UMP Modifieds: Michigan Dirt Cup Modified Tour 410 Sprints - Non-Winged: Great Lakes Traditional Sprints with Ontario Topless Sprint Cars-OTS Lightning Sprints | Results | | Mark Irwin (410 Sprints - Non-Winged) | 4th | - | - | 7th |
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| 8/28/2015 | Tri City Motor Speedway - Auburn, MI 410 Sprints - Non-Winged: Great Lakes Traditional Sprints with Ontario Topless Sprint Cars-OTS Factory Stocks, Sportsmans, Street Stocks, Dirt Late Models, Non-Winged Sprints | Results | | Mark Irwin (410 Sprints - Non-Winged) | - | - | - | 10th | | Mark Irwin (Non-Winged Sprints) | 6th | - | - | 10th |
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