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| 7/3/2021 | Williston Basin Speedway - Williston, ND TNT FIREWORKS PRESENTS-ROCK THE RACES! WESTERN RENEGADE WINGLESS SPRINTS-INK SPOT PRINTING Non-Winged Sprints, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, Junior Slingshots | Results | | Keith Mattox (IMCA Stock Car) | 5th | - | - | 11th (DNF) |
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| 8/28/2021 | Williston Basin Speedway - Williston, ND COCA COLA CHAMPIONSHIP NIGHT & RABE COTE MEMORIAL 2021 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, Junior Slingshots | Results | | Keith Mattox (IMCA Stock Car) | 3rd | - | - | 9th (DNF) |
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| 9/3/2021 | Nodak Speedway - Minot, ND Motor Magic Night 1 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Keith Mattox (IMCA Stock Car) | 7th (DNF) | - | - | 13th |
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| 9/4/2021 | Nodak Speedway - Minot, ND Motor Magic Night 2 Sprint Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, Junior Slingshots | Results | | Keith Mattox (IMCA Stock Car) | 2nd | - | - | 4th |
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| 9/5/2021 | Nodak Speedway - Minot, ND Motor Magic Night 3 Generic 1, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, Junior Slingshots | Results | | Keith Mattox (IMCA Stock Car) | 2nd | - | - | 7th |
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| 9/17/2021 | Williston Basin Speedway - Williston, ND FALL ROUND UP -NIGHT 1! AMERICAN LEGION - IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, Junior Slingshots | Results | | Keith Mattox (IMCA Stock Car) | 5th | - | - | 3rd |
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| 9/18/2021 | Williston Basin Speedway - Williston, ND FALL ROUND UP-NIGHT 2-AMERICAN LEGION Generic 1, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, Junior Slingshots | Results | | Keith Mattox (IMCA Stock Car) | 4th | - | - | 5th |
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