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| 5/17/2013 | Rapid Speedway - Rock Rapids, IA Regular Show 410 Sprints - Winged, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, Winged A-Class, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 1st | - | - | 2nd |
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| 5/31/2013 | Rapid Speedway - Rock Rapids, IA 360 Winged Sprint Special- No HRA Sprints/Sportsmans 360 Sprints - Winged, 410 Sprints - Winged, Hobby Stocks, Stock Cars, B Modifieds, 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 2nd | - | - | 5th |
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| 6/7/2013 | Rapid Speedway - Rock Rapids, IA USMTS Special & USRA Iron Man Challenge DIRTcar UMP Modifieds, DIRTcar Sportsmans, Stock Cars, B Modifieds | Results | | Darwin Klaassen (Stock Cars) | 7th | - | - | 13th |
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| 6/14/2013 | Rapid Speedway - Rock Rapids, IA Regular Show DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 6th (DNF) | - | - | 5th |
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| 6/21/2013 | Rapid Speedway - Rock Rapids, IA Regular Show 360 Sprints - Winged, 410 Sprints - Winged, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 1st | - | - | 10th (DNF) |
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| 6/28/2013 | Rapid Speedway - Rock Rapids, IA Regular Show DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 1st | - | - | 1st |
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| 7/12/2013 | Rapid Speedway - Rock Rapids, IA B-Mod Special + Regular Show DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 5th | - | - | - |
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| 7/19/2013 | Rapid Speedway - Rock Rapids, IA Regular Show - No HRA Sprints DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Darwin Klaassen (Stock Cars) | 1st | - | - | 3rd |
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| 7/23/2013 | Rapid Speedway - Rock Rapids, IA Lyon County Fair DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 2nd | - | - | 6th |
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| 7/26/2013 | Rapid Speedway - Rock Rapids, IA Buffalo Wild Wings Outlaw 410 Special with 360 Challenge 360 Sprints - Winged, 410 Sprints - Winged, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 1st | - | - | 1st |
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| 8/9/2013 | Rapid Speedway - Rock Rapids, IA Sportsman Special + Regular Show DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 7th (DNF) | - | - | 6th |
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| 8/16/2013 | Rapid Speedway - Rock Rapids, IA Hobby Stock "King of the Hill" Special DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 5th (DNF) | - | - | 6th |
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| 8/30/2013 | Rapid Speedway - Rock Rapids, IA Season Championship DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds, Limited 360 Sprints - Non-Winged | Results | | Darwin Klaassen (Stock Cars) | 5th | - | - | 8th |
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