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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 | | Robert Broxton (Street Stocks) | 1st | - | - | 2nd |
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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 | | Robert Broxton (Street Stocks) | 2nd | - | - | 4th |
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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 | | Robert Broxton (Street Stocks) | 1st | - | - | 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 | | Robert Broxton (Street Stocks) | 4th (DNF) | - | - | DNS |
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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 | | Robert Broxton (Street Stocks) | 1st | - | - | 2nd |
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| 6/16/2018 | Grayson County Speedway - Bells, TX Powder Puff Race DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Pony Stock | Results | | Robert Broxton (Street Stocks) | 2nd | - | - | 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 | | Robert Broxton (Street Stocks) | 3rd | - | - | 4th |
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| 7/14/2018 | Grayson County Speedway - Bells, TX Texas Wing Modified Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, Street Stocks, 600cc Modifieds | Results | | Robert Broxton (Street Stocks) | 3rd | - | - | 1st |
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| 7/28/2018 | 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 | | Robert Broxton (Street Stocks) | 4th | - | - | 2nd |
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| 8/4/2018 | Grayson County Speedway - Bells, TX STEM Series DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, Street Stocks, 600cc Modifieds | Results | | Robert Broxton (Street Stocks) | 5th (DNF) | - | - | 3rd |
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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 | | Robert Broxton (Street Stocks) | 3rd | - | - | 4th |
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| 8/25/2018 | Grayson County Speedway - Bells, TX Regular race DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Pony Stock | Results | | Robert Broxton (Street Stocks) | 3rd | - | - | 3rd |
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| 9/1/2018 | Grayson County Speedway - Bells, TX Regular race DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, A Modifieds, Street Stocks, 600cc Modifieds | Results | | Robert Broxton (Street Stocks) | 2nd | - | - | 2nd |
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