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| 5/3/2015 | Huset's Speedway - Brandon, SD MSTS 360 Sprints - Winged: Midwest Sprint Touring Series Sprint Cars, Hobby Stocks, Winged A-Class, B Modifieds, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 3rd | - | - | 1st |
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| 5/22/2015 | Rapid Speedway - Rock Rapids, IA Regular Classes + LMSS DIRTcar Late Models, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, Winged Outlaw, Stock Non-Wing, B Modifieds | Results | | Darrin Korthals (DIRTcar Late Models) | 1st | - | - | 1st |
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| 5/31/2015 | Huset's Speedway - Brandon, SD Premier Racing Series presented by Pizza Ranch 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, B Modifieds, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 1st | - | - | 11th (DNF) |
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| 6/7/2015 | Huset's Speedway - Brandon, SD Premier Racing Series presented by Seafoam 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, Street Stocks, Generic 1 | Results | | Darrin Korthals (Street Stocks) | 6th | - | - | 5th |
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| 6/14/2015 | Huset's Speedway - Brandon, SD 410 Sprints - Winged: World of Outlaws Winged A-Class, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 1st | - | - | 1st |
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| 6/21/2015 | Huset's Speedway - Brandon, SD Premier Racing Series - Father's Day - presented by O'Reilly Auto Parts 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, B Modifieds, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 3rd | - | - | 6th |
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| 6/28/2015 | Huset's Speedway - Brandon, SD Premier Racing Series 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, Winged A-Class, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 2nd | - | - | 4th |
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| 7/5/2015 | Huset's Speedway - Brandon, SD $5,000 to win Outlaw Sprints presented by Bolte's Roll Off Service & Octane Ink 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, Winged A-Class, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 4th | - | - | 2nd |
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| 7/12/2015 | Huset's Speedway - Brandon, SD Premier Racing Series presented by Brandon Lumber Company 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, B Modifieds, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 3rd | - | - | 6th |
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| 7/19/2015 | Huset's Speedway - Brandon, SD Hall of Fame Night / Racing presented by Borrowed Bucks 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, Winged A-Class, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 2nd | - | - | 1st |
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| 7/24/2015 | Rapid Speedway - Rock Rapids, IA Regular Classes + LMSS DIRTcar Late Models, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Darrin Korthals (DIRTcar Late Models) | 1st | - | - | 1st |
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| 7/26/2015 | Huset's Speedway - Brandon, SD 410 Sprints - Winged: National Sprint League Hobby Stocks, Winged A-Class, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 2nd | - | - | 2nd |
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| 8/2/2015 | Huset's Speedway - Brandon, SD Premier Racing Series presented by The Corner Pub 410 Sprints - Winged, 305 Sprints - Winged, Sprint Cars, Hobby Stocks, Winged A-Class, Street Stocks, Generic 1 | Results | | Darrin Korthals (Street Stocks) | 3rd | - | - | 3rd |
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| 8/23/2015 | Huset's Speedway - Brandon, SD FVP National Sprint League 410 Sprints - Winged: National Sprint League Hobby Stocks, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 3rd | - | - | 2nd |
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| 8/30/2015 | Huset's Speedway - Brandon, SD Night of $1,000 Stars / MSTS Challenge 360 Sprints - Winged: Midwest Sprint Touring Series 305 Sprints - Winged, Sprint Cars, Hobby Stocks, Winged A-Class, B Modifieds, Street Stocks | Results | | Darrin Korthals (Street Stocks) | 6th (DNF) | - | - | 12th (DNF) |
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| 9/6/2015 | Huset's Speedway - Brandon, SD 410 Sprints - Winged: National Sprint League Hobby Stocks, Winged A-Class, Street Stocks | Results | | Darrin Korthals (Street Stocks) | - | - | - | 2nd |
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| 9/13/2015 | Huset's Speedway - Brandon, SD 410 Sprints - Winged, Sprint Cars, Hobby Stocks, Winged A-Class, B Modifieds, Street Stocks, Generic 1 | Results | | Darrin Korthals (Street Stocks) | 1st | - | - | 13th (DNF) |
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