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| 4/17/2015 | Winston Speedway - Rothbury, MI Full Program – Best Appearing Car Award For Each Class DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 5th | - | - | 7th |
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| 4/24/2015 | Winston Speedway - Rothbury, MI 9th Annual All-Star Performance 50 Sunoco American Late Model Series DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 5th | - | - | 10th |
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| 5/1/2015 | Winston Speedway - Rothbury, MI Full Program - Street Stock Special presented by Mr. B's Pancake House DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 5th | - | - | 10th |
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| 5/8/2015 | Winston Speedway - Rothbury, MI Michigan Dirt Cup Season Opener DIRTcar UMP Modifieds: Michigan Dirt Cup Modified Tour DIRTcar Late Models, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 6th | - | 2nd | 12th |
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| 5/22/2015 | Winston Speedway - Rothbury, MI Full Program - Scout Night – All Scouts In Uniform Admitted FREE!! / Bomber Special DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 3rd | - | - | 3rd |
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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 | | Brian Kiester (DIRTcar UMP Modifieds) | 9th | - | 9th | - |
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| 6/26/2015 | Winston Speedway - Rothbury, MI Kids Night -Fun and Games, Bike Giveaways & More / Roll Over Contest DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 8th | - | - | 8th |
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| 7/3/2015 | Winston Speedway - Rothbury, MI Full Program - Fireworks!!! - Street Stock Special Presented by APS Performance Collison DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 4th | - | - | 4th |
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| 7/17/2015 | Winston Speedway - Rothbury, MI Full Program - Bomber Special Tim Epplett Memorial - Presented by Bolduc's Complete Automotive DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 6th | - | - | 3rd |
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| 7/24/2015 | Winston Speedway - Rothbury, MI Kenny Blondel Memorial-55 Lap for Street Stocks-Presented by Port City Racecars DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 6th | - | - | 7th |
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| 7/31/2015 | Winston Speedway - Rothbury, MI Michigan Auto Racing Fan Club Night DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 4th | - | - | 6th |
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| 8/14/2015 | Winston Speedway - Rothbury, MI Fan Appreciation Night- UMP Modified Special Presented by Port City Racecars DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 6th | - | - | 6th |
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| 8/21/2015 | Winston Speedway - Rothbury, MI Full Program - American Ethanol Late Model Tour DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 6th | - | - | 10th |
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| 8/28/2015 | Winston Speedway - Rothbury, MI Back to School / Season Championship Night DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 2nd | - | - | 6th |
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| 9/4/2015 | Winston Speedway - Rothbury, MI Full Program - Stock Car Special / MI Dirt Mod Special / 4 Cyl. Special DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 3rd | - | - | 6th |
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| 9/11/2015 | Winston Speedway - Rothbury, MI Full Show DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Street Stocks, Hornets | Results | | Brian Kiester (DIRTcar UMP Modifieds) | - | - | - | 9th |
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| 9/18/2015 | Berlin Raceway - Marne, MI Dirt Cup Fall Nationals - Round 1 DIRTcar UMP Modifieds | Rain Out |
| 9/19/2015 | Berlin Raceway - Marne, MI | Results | | Brian Kiester (DIRTcar UMP Modifieds) | 7th | - | 3rd | 18th |
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