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6/23/2018 | Grayson County Speedway - Bells, TX Side by Side + Rookie DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, 600cc Modifieds | Results | Mark Marr (A Modifieds) | 4th | - | - | 4th |
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6/30/2018 | Grayson County Speedway - Bells, TX Firework's & Southern Texas Late Model Series. Dirt Late Models: XR Southern Storm DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, 600cc Modifieds | Results | Mark Marr (A Modifieds) | 8th | - | - | 1st |
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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 | Mark Marr (A Modifieds) | 9th | - | - | 19th (DNF) |
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8/11/2018 | Grayson County Speedway - Bells, TX Mechanic/Staff Race DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, 600cc Modifieds, Pony Stock | Rain Out |
8/18/2018 | 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 | Mark Marr (Factory Stocks) | DNS | - | - | 12th (DNF) |
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9/8/2018 | Grayson County Speedway - Bells, TX NON IMCA Points night (last race for the Rookie class) Factory Stocks, Hobby Stocks, Stock Cars, B Modifieds, Street Stocks, Rookie Class, 600cc Modifieds, Pony Stock | Results | Mark Marr (Factory Stocks) | 3rd | - | - | 6th |
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9/29/2018 | Grayson County Speedway - Bells, TX Last IMCA points race / Powder Puff race DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, Street Stocks, 600cc Modifieds | Results | Mark Marr (Factory Stocks) | 3rd | - | - | 8th (DNF) | Mark Marr (600cc Modifieds) | 5th (DNF) | - | - | 11th (DNF) |
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