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| 8/8/2015 | Merritt Speedway - Merritt, MI Lightning Sprint Showdown presented by Boyne Machine DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Rick Irwin (Lightning Sprints) | 4th | - | - | 4th |
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| 8/21/2015 | Cherry Raceway - Fife Lake, MI 2nd Annual Ron Doberstein Memorial Warrior Invitational (Warriors $250 to Win) DIRTcar Late Models, DIRTcar UMP Modifieds, Stock Cars, Street Stocks, Hornets, Lightning Sprints | Results | | Rick Irwin (Lightning Sprints) | 6th | - | - | 10th |
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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 | | Rick Irwin (Lightning Sprints) | 2nd | - | - | 3rd |
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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 | | Rick Irwin (Lightning Sprints) | 9th | - | - | 1st |
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