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| 5/27/2018 | Merritt Speedway - Merritt, MI MEMORIAL WEEKEND DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Generic 1, Mini Wedge | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 4th | 4th | - | 9th |
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| 6/6/2018 | Merritt Speedway - Merritt, MI DIRTcar Late Models: American Ethanol Dirt Racing Group DIRTcar UMP Modifieds, Stock Cars, B Modifieds | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 5th | - | - | 12th |
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| 6/9/2018 | Merritt Speedway - Merritt, MI SPRINTS & PRO STOCK NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, 360 Sprints - Non-Winged, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 3rd | - | - | 14th |
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| 6/16/2018 | Merritt Speedway - Merritt, MI SCHOOLS OUT NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, B Modifieds, Enduro, Generic 1, Mini Wedge, Mini Outlaws | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 5th | - | - | 10th |
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| 7/3/2018 | Merritt Speedway - Merritt, MI FAN APPRECIATION NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 8th | - | - | 11th |
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| 7/14/2018 | Merritt Speedway - Merritt, MI LATE MODEL NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge, Mini Outlaws | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 8th | - | - | 9th |
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| 7/20/2018 | Merritt Speedway - Merritt, MI 30TH VANDUINEN WOOD TIC DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 4th | - | 5th | DNS |
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| 7/28/2018 | Merritt Speedway - Merritt, MI WEEKLY SHOW DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Enduro | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 6th | - | - | 5th |
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| 8/3/2018 | Merritt Speedway - Merritt, MI 5OTH ANNIVERSARY NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 4th | - | - | 18th |
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| 8/4/2018 | Merritt Speedway - Merritt, MI 5OTH ANNIVERSARY NIGHT DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | - | - | - | DNS |
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| 9/8/2018 | Merritt Speedway - Merritt, MI 50TH ANNIVERSARY FINALE KREGEAR CHAMPIONSHIP DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Stock Cars, Sportsmans, B Modifieds, Lightning Sprints, Enduro, Generic 1, Mini Wedge | Results | | Donnie Roberts (DIRTcar UMP Modifieds) | 7th | - | - | 12th |
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