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| 3/5/2021 | Heart O' Texas Speedway - Waco, TX Opening Night - Jack Bagby Memorial - 1K to win Modifieds Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | David Montgomery (Factory Stocks) | 6th | - | - | 6th | | David Montgomery (IMCA Southern SportMod) | 4th | - | - | 17th |
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| 3/6/2021 | Kennedale Speedway Park - Kennedale, TX TSS Sprint Cars plus Regular Classes Factory Stocks, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | David Montgomery (Factory Stocks) | 4th | - | 12th | - | | David Montgomery (IMCA Southern SportMod) | 6th | - | - | 25th |
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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 | | David Montgomery (Factory Stocks) | 4th | - | 3rd | 20th | | David Montgomery (IMCA Southern SportMod) | 1st | - | - | 18th |
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| 3/19/2021 | Heart O' Texas Speedway - Waco, TX Regular Race Night Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | David Montgomery (IMCA Southern SportMod) | 5th | - | - | 7th |
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| 3/27/2021 | Kennedale Speedway Park - Kennedale, TX Winged Sprints: Bandits Outlaw Sprint Series Factory Stocks, Stock Cars, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (Factory Stocks) | 8th | - | 8th | - | | David Montgomery (IMCA Southern SportMod) | 2nd | - | - | 4th |
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| 4/10/2021 | Kennedale Speedway Park - Kennedale, TX Dirt Late Models: American Crate Late Model Series Factory Stocks, Stock Cars, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 3rd | - | - | 8th |
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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 | | David Montgomery (Factory Stocks) | 8th | - | - | 8th | | David Montgomery (IMCA Southern SportMod) | 3rd | - | - | 4th |
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| 5/15/2021 | Kennedale Speedway Park - Kennedale, TX 305 Sprints - Winged: Texas Sprint Series Factory Stocks, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 2nd | - | - | 4th |
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| 6/4/2021 | Heart O' Texas Speedway - Waco, TX DFW Local Late Model Series - Kids Power Wheel Races Dirt Late Models: American Crate Late Model Series Factory Stocks, Street Stocks, Dirt Crate Late Models, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | David Montgomery (IMCA Southern SportMod) | 7th | - | - | 8th |
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| 6/5/2021 | Kennedale Speedway Park - Kennedale, TX 305 Sprints - Non-Winged: ASCS Elite Non-Wing Sprints Factory Stocks, Stock Cars, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 2nd | - | - | 12th |
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| 6/19/2021 | Kennedale Speedway Park - Kennedale, TX SPECTATOR RACE Winged Sprints: Bandits Outlaw Sprint Series Factory Stocks, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 5th | - | - | 9th |
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| 6/26/2021 | Kennedale Speedway Park - Kennedale, TX Factory Stocks, Dwarf, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 3rd | - | - | 10th |
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| 7/2/2021 | Heart O' Texas Speedway - Waco, TX Annual Fireworks Show - Sunoco Fuels Night - 1K to win Modifieds Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | David Montgomery (IMCA Southern SportMod) | 1st | - | - | 10th |
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| 7/10/2021 | Kennedale Speedway Park - Kennedale, TX 305 Sprints - Winged: Texas Sprint Series Factory Stocks, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 5th | - | - | 14th |
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| 7/30/2021 | Heart O' Texas Speedway - Waco, TX IMCA Sport Mods $1,200 to Win - Modified King of the Hill $250 Factory Stocks, Street Stocks, IMCA Modified, IMCA Southern SportMod, IMCA Stock Car | Results | | David Montgomery (IMCA Southern SportMod) | 7th | - | 7th | 11th |
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| 7/31/2021 | Kennedale Speedway Park - Kennedale, TX POWDER PUFF Factory Stocks, Stock Cars, B Modifieds, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 2nd | - | - | 2nd |
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| 8/14/2021 | Kennedale Speedway Park - Kennedale, TX STEMS + FACTORY STOCK 1 ON 1 Factory Stocks, Stock Cars, Limited Modified, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 1st | - | - | 4th |
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| 8/20/2021 | Heart O' Texas Speedway - Waco, TX Regular Race Night - Kids Power Wheel Races - Factory Stock & IMCA Stock Car King of the Hill Factory Stocks, Street Stocks, Limited Sport Mod, IMCA Southern SportMod, IMCA Stock Car | Results | | David Montgomery (IMCA Southern SportMod) | 6th | - | - | 11th |
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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 | | David Montgomery (IMCA Southern SportMod) | 3rd | - | - | 3rd |
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| 8/28/2021 | Kennedale Speedway Park - Kennedale, TX TOMS MODIFIEDS A Modifieds: TOMS - Touring Outlaw Modified Series Factory Stocks, Stock Cars, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 2nd | - | - | 13th |
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| 9/10/2021 | Kennedale Speedway Park - Kennedale, TX FACTORY STOCK & SPORT MOD SHOOTOUT + STOCK CARS & SPORT COMPACTS Factory Stocks, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | David Montgomery (IMCA Southern SportMod) | 1st | - | - | - |
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| 9/11/2021 | Kennedale Speedway Park - Kennedale, TX FACTORY STOCK & SPORT MOD SHOOTOUT + LATE MODELS & ECO MODS Dirt Late Models: American Crate Late Model Series Factory Stocks, B Modifieds, IMCA Southern SportMod | Results | | David Montgomery (IMCA Southern SportMod) | - | - | 13th | 18th |
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| 10/9/2021 | Boyd Raceway - Boyd, TX Fall Finale Factory Stocks, A Modifieds, Street Stocks, Dwarf, Limited Sport Mod, Sport Compact | Results | | David Montgomery (Limited Sport Mod) | 2nd | - | - | 7th |
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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 | | David Montgomery (IMCA Southern SportMod) | 7th | - | - | - |
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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 | | David Montgomery (IMCA Southern SportMod) | - | - | 4th | 21st |
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