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| 3/5/2021 | RPM Speedway - Crandall, TX Texas Spring Nationals Night 1 A Modifieds: USMTS - United States Modified Touring Series Dwarf, Limited Sport Mod, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Brent Mayfield (Dwarf) | 3rd | - | - | 2nd |
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| 3/13/2021 | Kennedale Speedway Park - Kennedale, TX Factory Stocks, Stock Cars, Dwarf, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Brent Mayfield (Dwarf) | 1st | - | - | 3rd |
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| 5/7/2021 | Heart O' Texas Speedway - Waco, TX Regular Race Night - Demo Derby Factory Stocks, Street Stocks, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 3rd | - | - | 20th |
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| 5/14/2021 | Heart O' Texas Speedway - Waco, TX Bandit Outlaw Sprint Series - Children's Tumor Foundation Night Winged Sprints: Bandits Outlaw Sprint Series Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 2nd | - | - | 1st |
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| 5/15/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Brent Mayfield (Stock Cars) | 2nd | - | - | 2nd |
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| 5/21/2021 | Heart O' Texas Speedway - Waco, TX Lone Star Dwar Cars - Kids Bicycle Races Factory Stocks, Street Stocks, Dwarf, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 2nd | - | - | 3rd |
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| 6/4/2021 | Heart O' Texas Speedway - Waco, TX DFW Local Late Model Series - Kids Power Wheel Races Factory Stocks, Street Stocks, Dirt Late Models, Dirt Crate Late Models, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 1st | - | - | 3rd |
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| 6/11/2021 | Heart O' Texas Speedway - Waco, TX Touring Outlaw Modified Series - Kids Bicycle Races A Modifieds: TOMS - Touring Outlaw Modified Series Factory Stocks, Street Stocks, Limited Modified, Limited Sport Mod, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 5th | - | - | 9th |
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| 7/16/2021 | Heart O' Texas Speedway - Waco, TX Regular Race Night - Lone Star Dwarf Cars Factory Stocks, Street Stocks, Dwarf, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 6th | - | - | 5th |
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| 7/23/2021 | Heart O' Texas Speedway - Waco, TX Texas Crate Late Model Series - Driver Autographs at Intermission - Kids 12 and under Free Factory Stocks, Street Stocks, Dirt Late Models, Limited Sport Mod, Dirt Crate Late Models, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 3rd | - | - | 8th |
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| 7/31/2021 | Big O Speedway - Ennis, TX DIRTcar Late Models, Factory Stocks, Stock Cars, Hornets, Limited Sport Mod, USRA Modifieds, USRA Factory Stocks, Dirt Winged Modifieds | Results | | Brent Mayfield (Stock Cars) | 1st | - | - | 2nd |
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| 8/27/2021 | Heart O' Texas Speedway - Waco, TX Final Point Night - Trailer Race!!! - All Classes Draw/Redraw Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | Brent Mayfield (Street Stocks) | 7th | - | - | DNS |
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| 10/21/2021 | Heart O' Texas Speedway - Waco, TX 24th Annual Fall Classic - 6th Annual Dwarf Car Nationals - Practice Night Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car, Veteran Dwarf, Pro Dwarf | Results | | Brent Mayfield (Pro Dwarf) | - | - | - | - |
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| 10/22/2021 | Heart O' Texas Speedway - Waco, TX 24th Annual Fall Classic - 6th Annual Dwarf Car Nationals - Qualifying Night Factory Stocks, Street Stocks, Dirt Late Models, Limited Sport Mod, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car, Veteran Dwarf, Pro Dwarf | Results | | Brent Mayfield (Pro Dwarf) | 5th | - | - | 16th |
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| 10/23/2021 | Heart O' Texas Speedway - Waco, TX 24th Annual Fall Classic - 6th Annual Dwarf Car Nationals - Championship Night Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car, Veteran Dwarf, Pro Dwarf | Results | | Brent Mayfield (Pro Dwarf) | - | - | 14th | - |
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| 11/5/2021 | Creek County Speedway - Sapulpa, OK Restricted 'A' Class: NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros Dwarf, 600cc Modifieds | Results | | Brent Mayfield (Dwarf) | 7th | - | 3rd | 16th |
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| 11/6/2021 | Creek County Speedway - Sapulpa, OK Restricted 'A' Class: NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros Dwarf, 600cc Modifieds | Results | | Brent Mayfield (Dwarf) | 2nd | - | - | 2nd |
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