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| 5/9/2015 | Park Jefferson International Speedway - Jefferson, SD Sensational Six - Opening Night Hobby Stocks, Stock Cars, Sportsmans, A Modifieds, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 5th |
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| 5/23/2015 | Park Jefferson International Speedway - Jefferson, SD 1st Annual Roger Hackett Memorial Hobby Stocks, Stock Cars, Sportsmans, A Modifieds, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 5th |
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| 5/29/2015 | Park Jefferson International Speedway - Jefferson, SD 2nd Annual Carlson Clash - Lucas Oil MLRA vs Corn Belt Clash Dirt Super Late Models: Lucas Oil MLRA with Corn Belt Clash Late Model Series Stock Cars, A Modifieds, B Modifieds | Results | | Karl Brewer (B Modifieds) | - | - | - | 4th |
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| 5/30/2015 | Park Jefferson International Speedway - Jefferson, SD 2nd Annual Carlson Clash - Lucas Oil MLRA vs Corn Belt Clash Dirt Super Late Models: Lucas Oil MLRA Hobby Stocks, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 2nd |
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| 6/13/2015 | Park Jefferson International Speedway - Jefferson, SD Sensational Six Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 3rd |
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| 6/25/2015 | Park Jefferson International Speedway - Jefferson, SD Corn Belt Clash Vs. MARS Dirt Cars Dirt Super Late Models: Corn Belt Clash Late Model Series Stock Cars, B Modifieds | Results | | Karl Brewer (B Modifieds) | - | - | - | 3rd |
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| 6/27/2015 | Park Jefferson International Speedway - Jefferson, SD $5 Admission Family Fun Night! Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 2nd |
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| 7/10/2015 | Park Jefferson International Speedway - Jefferson, SD 410 Outlaw Sprint Cars - National Sprint League 410 Sprints - Winged: National Sprint League Hobby Stocks, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 6th |
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| 7/25/2015 | Park Jefferson International Speedway - Jefferson, SD Liberty National Bank Night-Modified Madness & Facebook Frenzy Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 2nd |
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| 9/19/2015 | Park Jefferson International Speedway - Jefferson, SD 2nd Annual Iron Cup Prelim presented by J&J Fitting LLC. Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | 3rd | - | - |
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| 9/20/2015 | Park Jefferson International Speedway - Jefferson, SD 2nd Annual Iron Cup Finals presented by J&J Fitting LLC Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Street Stocks, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 4th |
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| 9/26/2015 | Park Jefferson International Speedway - Jefferson, SD Open Wheel Fest Featuring Nebraska 360 vs MSTS 360 Sprints - Sprints and Mods! 360 Sprints - Winged: Malvern Bank 360 Sprints with Midwest Sprint Touring Series A Modifieds, B Modifieds | Results | | Karl Brewer (B Modifieds) | - | - | - | 1st |
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| 10/3/2015 | Park Jefferson International Speedway - Jefferson, SD Fender Fest featuring SLMR Late Models Dirt Super Late Models, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Karl Brewer (B Modifieds) | - | - | - | 3rd |
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