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| 3/20/2021 | Big O Speedway - Ennis, TX Weekly racing DIRTcar Late Models, Factory Stocks, Hornets, Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 5th | - | - | 8th |
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| 4/2/2021 | RPM Speedway - Crandall, TX 305 Sprints - Non-Winged, Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Manuel Williams Sr (USRA Modifieds) | 7th | - | 12th | - |
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| 4/3/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Winged Sprints: Bandits Outlaw Sprint Series Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 5th | - | - | 18th |
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| 4/30/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Dirt Super Late Models, Factory Stocks, Midwest Modifieds, USRA B-Mods, USRA Modifieds | Results | | Manuel Williams Sr (USRA Modifieds) | 7th | - | 7th | 18th (DNF) |
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| 5/1/2021 | Tri-State Speedway - Pocola, OK 42nd Annual Kegger Honoring Cecil Harlan - Features Super Sports, USRA B-Mods, USRA Modifieds, USRA Factory Stocks, USRA Stock Cars | Results | | Manuel Williams Sr (USRA Modifieds) | 5th | - | 6th | - |
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| 5/8/2021 | Big O Speedway - Ennis, TX Saturday Night at BIG O DIRTcar Late Models, Factory Stocks, Hornets, Limited Sport Mod, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 7th | - | - | 12th |
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| 5/14/2021 | RPM Speedway - Crandall, TX KR Cup Round #6 Dwarf, Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Manuel Williams Sr (USRA Modifieds) | 6th | - | - | 11th |
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| 5/15/2021 | Devil's Bowl Speedway - Mesquite, TX Weekly Championship Series #5 305 Sprints - Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 6th | - | - | 8th |
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| 5/22/2021 | Revolution Park - Monroe, LA USRA Modifieds: USRA American Racer Modified Series | Results | | Manuel Williams Sr (USRA Modifieds) | 9th | - | 13th | - |
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| 6/12/2021 | Big O Speedway - Ennis, TX DIRTcar Late Models, Factory Stocks, Hornets, Limited Sport Mod, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 4th | - | - | 3rd |
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| 6/20/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 4th | - | - | 12th |
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| 7/3/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Winged Sprints: Bandits Outlaw Sprint Series Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 3rd | - | - | 9th |
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| 7/24/2021 | Big O Speedway - Ennis, TX DIRTcar Late Models, Factory Stocks, Hornets, Lightweight SuperSport, Limited Sport Mod, USRA Modifieds, USRA Factory Stocks | Results | | Manuel Williams Sr (USRA Modifieds) | 1st | - | - | 4th |
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| 8/27/2021 | Ark-La-Tex Speedway - Vivian, LA USRA Modifieds: USRA American Racer Modified Series Factory Stocks, B Modifieds, Limited Modified, Dirt Crate Late Models | Results | | Manuel Williams Sr (USRA Modifieds) | 1st | - | - | 16th |
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| 11/4/2021 | Boothill Speedway - Greenwood, LA Summit USRA Southern Nationals USRA Modifieds: USRA American Racer Modified Series USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Manuel Williams Sr (USRA Modifieds) | 9th | - | 7th | - |
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| 11/5/2021 | Boothill Speedway - Greenwood, LA Summit USRA Southern Nationals USRA Modifieds: USRA American Racer Modified Series USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Manuel Williams Sr (USRA Modifieds) | 3rd | - | 8th | - |
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| 11/6/2021 | Boothill Speedway - Greenwood, LA Summit USRA Southern Nationals USRA Modifieds: USRA American Racer Modified Series USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Manuel Williams Sr (USRA Modifieds) | 4th | - | - | 23rd |
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