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| 5/5/2018 | Wagner Speedway - Wagner, SD Wagner Speedway 360 Sprints - Winged: Midwest Sprint Touring Series Hobby Stocks, B Modifieds, Street Stocks, Dirt Late Models, Sport Compact | Results | | Randy Rosenboom (Dirt Late Models) | 5th | - | - | 4th |
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| 5/25/2018 | Rapid Speedway - Rock Rapids, IA Weekly Racing Series + SLMR Dirt Super Late Models: SLMR Late Model Series DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Randy Rosenboom (Dirt Super Late Models) | DNS | - | 9th (DNF) | - |
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| 5/31/2018 | Sioux Speedway - Sioux Center, IA Sioux Speedway Dirt Late Models: Tri-State Late Models | Results | | Randy Rosenboom (Dirt Late Models) | 7th | - | - | 11th |
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| 6/17/2018 | Clay County Fair Speedway - Spencer, IA 305 Sprint Night 305 Sprints - Winged, Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Randy Rosenboom (A Modifieds) | 4th | - | - | 9th (DNF) |
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| 6/24/2018 | Clay County Fair Speedway - Spencer, IA Sport Mod Special Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Rain Out |
| 7/8/2018 | Clay County Fair Speedway - Spencer, IA Modified Special and Race Saver Sprints 305 Sprints - Winged, Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Randy Rosenboom (A Modifieds) | 6th | - | - | 17th |
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| 7/15/2018 | Clay County Fair Speedway - Spencer, IA Sport Mod and Sport Compact Special Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Randy Rosenboom (A Modifieds) | 6th | - | - | 10th |
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| 7/17/2018 | Rapid Speedway - Rock Rapids, IA 3rd Annual Randy Droescher Memorial 360 Sprints - Winged: Midwest Sprint Touring Series Dirt Late Models: Tri-State Late Models DIRTcar Late Models | Results | | Randy Rosenboom (Dirt Late Models) | 4th (DNF) | - | - | 19th (DNF) | | Randy Rosenboom (Economy Late Models) | - | - | - | - |
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| 7/22/2018 | Clay County Fair Speedway - Spencer, IA Kids Night 305 Sprints - Winged, Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Randy Rosenboom (A Modifieds) | 8th | - | - | 8th |
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| 7/25/2018 | Jackson Motorplex - Jackson, MN Bank Midwest Night featuring the Ben Nothdurft Memorial for the Trip-State Late Models Dirt Late Models: Tri-State Late Models Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Randy Rosenboom (Dirt Late Models) | 7th | - | - | 21st |
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| 7/29/2018 | Clay County Fair Speedway - Spencer, IA Veterans Appreciation Night Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Randy Rosenboom (A Modifieds) | 7th | - | - | 12th (DNF) |
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| 8/12/2018 | Clay County Fair Speedway - Spencer, IA Championship Night Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Randy Rosenboom (A Modifieds) | 5th | - | - | 9th |
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| 8/15/2018 | Buena Vista Raceway - Alta, IA Hawk-I Plumbing and Electric Inc. Season Championship- IMCA Weekly Racing Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Randy Rosenboom (A Modifieds) | 5th (DNF) | - | - | 9th |
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| 9/8/2018 | Wagner Speedway - Wagner, SD September Sprint-tacular 360 Sprints - Winged: Midwest Sprint Touring Series Dirt Late Models: Tri-State Late Models 305 Sprints - Winged, Hobby Stocks, B Modifieds, Street Stocks | Results | | Randy Rosenboom (Dirt Late Models) | 6th | - | - | 14th (DNF) |
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| 9/15/2018 | Rapid Speedway - Rock Rapids, IA Rapid Nationals Night #2 Dirt Late Models: Tri-State Late Models DIRTcar Late Models, DIRTcar Sportsmans, Hobby Stocks, Stock Cars, B Modifieds | Results | | Randy Rosenboom (Dirt Late Models) | 5th | - | - | 9th | | Randy Rosenboom (Economy Late Models) | - | - | - | - |
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