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| 5/18/2018 | Humboldt Speedway - Humboldt, KS KIds Night at the races, all kids 10 & under get in free + Bicycle Races Factory Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Chad Smith (Sport Compact) | 4th | - | - | 8th |
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| 6/1/2018 | Humboldt Speedway - Humboldt, KS Whitworth Memorial $1,500 to win B-Mods, Modifieds off this Night Factory Stocks, Stock Cars, B Modifieds, Sport Compact | Results | | Chad Smith (Sport Compact) | 4th | - | - | 5th (DNF) |
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| 6/28/2018 | Humboldt Speedway - Humboldt, KS Thirsty Thursday Triple Crown Challenge Ulma Late Models, No Modifieds Dirt Late Models: United Late Model Association Dirt Super Late Models, Factory Stocks, Stock Cars, B Modifieds, Sport Compact | Results | | Chad Smith (Sport Compact) | 10th | - | - | DNS |
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| 8/10/2018 | Humboldt Speedway - Humboldt, KS Kids Night Candy Clash Factory Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Chad Smith (Sport Compact) | DNS | - | - | 9th (DNF) |
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| 8/17/2018 | Humboldt Speedway - Humboldt, KS Whelen Engineering Veterans Night, No Modifieds + Mechanics Races Factory Stocks, Stock Cars, B Modifieds, Sport Compact | Results | | Chad Smith (Sport Compact) | 9th (DNF) | - | - | 6th |
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| 8/25/2018 | Humboldt Speedway - Humboldt, KS POWRI Open Wheel Challenge with Powri west midgets, and Lucas Oil War Sprints Midgets: POWRi West Midgets Non-Winged Sprints: POWRi WAR Sprints Factory Stocks, 410 Sprints - Non-Winged, Sport Compact | Results | | Chad Smith (Sport Compact) | 8th (DNF) | - | - | 7th (DNF) |
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