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| 6/6/2015 | Merritt Speedway - Merritt, MI Summer Showdown Prelude - Presented by Lane Automotive DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Nick Witzke (Lightning Sprints) | 10th | - | - | 5th |
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| 6/10/2015 | Merritt Speedway - Merritt, MI 1st Annual Merritt Showdown DIRTcar Late Models: American Ethanol Dirt Racing Group DIRTcar UMP Modifieds: Michigan Dirt Cup Modified Tour Stock Cars, Sportsmans, Lightning Sprints | Results | | Nick Witzke (Lightning Sprints) | - | - | - | 2nd |
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| 6/20/2015 | Merritt Speedway - Merritt, MI Engine Pro Sprints on Dirt plus MORA Mini Outlaw Sprints 360 Sprints - Winged: SOD-Sprints On Dirt (360s) Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Nick Witzke (Lightning Sprints) | 8th | - | - | 6th |
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| 7/24/2015 | Merritt Speedway - Merritt, MI 27 Annual Ed VanDuinen Wood Tic Weekend presented by Keyser Manufacturing DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Nick Witzke (Lightning Sprints) | 6th | - | - | 13th |
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