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| 5/16/2015 | Merritt Speedway - Merritt, MI Crank it Up Opening Night - $6 TICKETS DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Bob Hammar (DIRTcar Late Models) | 8th | - | 4th | - | | Bob Hammar (Dirt Pro Trucks) | 4th | - | - | 3rd |
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| 5/23/2015 | Merritt Speedway - Merritt, MI Armed Forces Memorial Weekend DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Dirt Pro Trucks | Results | | Bob Hammar (DIRTcar Late Models) | 5th | - | - | 18th | | Bob Hammar (Dirt Pro Trucks) | 5th | - | - | 4th |
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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 | | Bob Hammar (DIRTcar Late Models) | 5th | - | - | 20th | | Bob Hammar (Dirt Pro Trucks) | 4th | - | - | 7th |
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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 | | Bob Hammar (DIRTcar Late Models) | 7th | - | 10th | - |
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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 | | Bob Hammar (Dirt Pro Trucks) | 6th | - | - | 3rd |
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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 | | Bob Hammar (DIRTcar Late Models) | 1st | - | - | 12th |
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| 7/4/2015 | Merritt Speedway - Merritt, MI $5.00 NIGHT & Fireworks Presented by Riverside Racing DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Bob Hammar (DIRTcar Late Models) | 6th | - | - | 15th | | Bob Hammar (Dirt Pro Trucks) | 1st | - | - | 3rd |
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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 | | Bob Hammar (DIRTcar Late Models) | 1st | - | - | 13th | | Bob Hammar (Dirt Pro Trucks) | 6th | - | - | 4th |
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| 7/18/2015 | Merritt Speedway - Merritt, MI DIRTcar UMP Modifieds: Michigan Dirt Cup Modified Tour Factory Stocks, Stock Cars, Sportsmans, Dirt Pro Trucks | Results | | Bob Hammar (Dirt Pro Trucks) | 4th | - | - | 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 | | Bob Hammar (DIRTcar Late Models) | 5th | - | - | 10th | | Bob Hammar (Dirt Pro Trucks) | - | - | - | 7th |
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| 8/1/2015 | Merritt Speedway - Merritt, MI Borg Warner Kids Night presented by Hardcore Performance DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Dirt Pro Trucks | Results | | Bob Hammar (DIRTcar Late Models) | 4th | - | - | 12th | | Bob Hammar (Dirt Pro Trucks) | 1st | - | - | 1st |
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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 | | Bob Hammar (DIRTcar Late Models) | 7th | - | - | 20th | | Bob Hammar (Dirt Pro Trucks) | 4th | - | - | 2nd |
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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 | | Bob Hammar (DIRTcar Late Models) | 5th | - | - | 15th | | Bob Hammar (Dirt Pro Trucks) | 3rd | - | - | 1st |
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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 | | Bob Hammar (DIRTcar Late Models) | 6th | - | 2nd | 19th | | Bob Hammar (Dirt Pro Trucks) | 7th | - | - | 4th |
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| 9/5/2015 | Merritt Speedway - Merritt, MI Gene Kregear Engine Pro Championship Weekend DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Bob Hammar (DIRTcar Late Models) | 5th | - | - | - | | Bob Hammar (Dirt Pro Trucks) | 4th | - | - | 3rd |
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| 9/6/2015 | Merritt Speedway - Merritt, MI Gene Kregear Engine Pro Championship Weekend - Fireworks & Party DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, Lightning Sprints, Dirt Pro Trucks | Results | | Bob Hammar (Dirt Pro Trucks) | - | - | - | 4th |
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