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| 3/31/2018 | Grayson County Speedway - Bells, TX First Point Race for 2018 DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, Street Stocks | Results | | Tim Chumley (Hobby Stocks) | 3rd | - | - | 7th (DNF) |
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| 4/14/2018 | Grayson County Speedway - Bells, TX Restricted 'A' Class: NOW600 National Micros with NOW600 Restricted Micros Stock Non-Wing: NOW600 Non-Wing Micros DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, 600cc Modifieds | Results | | Tim Chumley (Hobby Stocks) | 5th (DNF) | - | - | 13th (DNF) |
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| 4/28/2018 | Grayson County Speedway - Bells, TX STEM Series DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, Street Stocks, Rookie Class | Results | | Tim Chumley (Hobby Stocks) | 2nd | - | - | 4th |
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| 5/5/2018 | Grayson County Speedway - Bells, TX Regular race night/ Rookie DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, 600cc Modifieds | Results | | Tim Chumley (Hobby Stocks) | 4th | - | - | 2nd |
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| 5/19/2018 | Grayson County Speedway - Bells, TX Rookie Class DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, Rookie Class | Results | | Tim Chumley (Hobby Stocks) | 2nd | - | - | 4th |
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| 5/26/2018 | Grayson County Speedway - Bells, TX Regular race Factory Stocks, Hobby Stocks, Street Stocks, 600cc Modifieds, UTV Amateur Limited | Results | | Tim Chumley (Hobby Stocks) | 8th (DNF) | - | - | 13th (DNF) |
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| 6/9/2018 | Grayson County Speedway - Bells, TX Rookie Class DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, Rookie Class, 600cc Modifieds | Results | | Tim Chumley (Hobby Stocks) | 5th | - | - | 2nd |
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| 7/7/2018 | Grayson County Speedway - Bells, TX Rookie Class DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, Rookie Class, 600cc Modifieds | Results | | Tim Chumley (Hobby Stocks) | 1st | - | - | 4th |
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| 7/20/2018 | Rocket Raceway Park - Petty, TX DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, 600cc Modifieds, Limited Sport Mod | Results | | Tim Chumley (Hobby Stocks) | 3rd | - | - | 4th |
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