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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 | | Bill Dunham (Lightning Sprints) | 1st | - | - | 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 | | Bill Dunham (Lightning Sprints) | 1st | - | - | 1st |
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| 6/27/2015 | Merritt Speedway - Merritt, MI Factory Stock / 4-Cylinder Night DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints | Results | | Bill Dunham (Lightning Sprints) | 1st | - | - | 4th |
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| 8/15/2015 | Merritt Speedway - Merritt, MI Jim Brannam Memorial PS & PT Special, plus the Sunoco American Late Model Series DIRTcar Late Models, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Bill Dunham (Lightning Sprints) | 1st | - | - | 12th |
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| 8/29/2015 | Merritt Speedway - Merritt, MI NAPA of Cadillac / Cadillac Truck Parts Ladies Night DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Bill Dunham (Lightning Sprints) | 3rd | - | - | 3rd |
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