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| 4/10/2021 | Rocket Raceway Park - Petty, TX $5,000/win FACTORY STOCKS! TEXAS SPRINT SERIES! 305 Sprints - Winged: Texas Sprint Series Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, IMCA RaceSaver Sprint Car | Results | | Melvin Whitworth (600cc Modifieds) | 3rd | - | - | 6th |
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| 4/17/2021 | Southern Oklahoma Speedway - Ardmore, OK Texas Sprint Series 305 Sprints - Winged, Hobby Stocks, Stock Cars, 600cc Modifieds, Limited Sport Mod, IMCA Stock Car, IMCA RaceSaver Sprint Car | Results | | Melvin Whitworth (600cc Modifieds) | 3rd | - | - | 10th |
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| 5/1/2021 | Southern Oklahoma Speedway - Ardmore, OK TOMS A Modifieds: TOMS - Touring Outlaw Modified Series Hobby Stocks, Stock Cars, 600cc Modifieds, Limited Sport Mod, IMCA Stock Car | Results | | Melvin Whitworth (600cc Modifieds) | 3rd | - | 5th | 15th |
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| 5/8/2021 | Grayson County Speedway - Bells, TX Race Program / TSS Sprints 305 Sprints - Winged: IMCA RaceSaver Sprints Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Southern SportMod, IMCA RaceSaver Sprint Car | Results | | Melvin Whitworth (600cc Modifieds) | 4th | - | - | 8th |
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| 5/15/2021 | Grayson County Speedway - Bells, TX Race Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 3rd | - | - | 17th (DNF) |
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| 6/12/2021 | Southern Oklahoma Speedway - Ardmore, OK Regular Night Racing - Hobby/Factory, Eco Mods, Stock Car, Sport Mods Hobby Stocks, Stock Cars, 600cc Modifieds, Limited Sport Mod | Results | | Melvin Whitworth (600cc Modifieds) | 2nd | - | - | 8th |
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| 6/19/2021 | Grayson County Speedway - Bells, TX Race Program / Topless Mods Factory Stocks, Hobby Stocks, 600cc Modifieds, Limited Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 3rd | - | - | 9th |
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| 6/26/2021 | Grayson County Speedway - Bells, TX Full Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 3rd | - | - | 6th |
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| 7/3/2021 | Grayson County Speedway - Bells, TX Race Program / Firework Show Factory Stocks, Hobby Stocks, Street Stocks, 600cc Modifieds, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 5th | - | - | 17th (DNF) |
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| 7/10/2021 | Grayson County Speedway - Bells, TX Full Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 4th | - | - | 7th |
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| 7/24/2021 | Grayson County Speedway - Bells, TX Full Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 5th | - | - | 12th (DNF) |
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| 7/31/2021 | Grayson County Speedway - Bells, TX Race Program / TBA Factory Stocks, Hobby Stocks, B Modifieds, 600cc Modifieds, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 1st | - | - | 5th |
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| 8/7/2021 | Grayson County Speedway - Bells, TX Full Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 5th | - | - | 9th |
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| 8/21/2021 | Grayson County Speedway - Bells, TX Full Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 4th | - | - | 8th |
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| 9/4/2021 | Grayson County Speedway - Bells, TX Full Program Non - IMCA Mod Points Night Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 7th | - | - | 11th |
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| 9/5/2021 | RPM Speedway - Crandall, TX 3rd Annual Ronny Sigman Memorial Dirt Late Models: XR Southern Storm with American Crate Late Model Series USRA Modifieds: USRA American Racer Modified Series A Modifieds, Limited Sport Mod, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Melvin Whitworth (Limited Sport Mod) | 3rd | - | - | 8th |
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| 9/11/2021 | Grayson County Speedway - Bells, TX Race Program / TSS Sprints Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Southern SportMod, IMCA RaceSaver Sprint Car | Results | | Melvin Whitworth (600cc Modifieds) | 4th | - | - | 12th (DNF) |
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| 9/18/2021 | Grayson County Speedway - Bells, TX Full Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 3rd | - | - | 8th |
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| 9/25/2021 | Grayson County Speedway - Bells, TX Race Program / Toms - Touring Outlaw Modified Series A Modifieds: TOMS - Touring Outlaw Modified Series Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Southern SportMod | Results | | Melvin Whitworth (600cc Modifieds) | 6th | - | - | 8th |
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| 10/9/2021 | Grayson County Speedway - Bells, TX Patsy Peters Memorial Race Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, 600cc Modifieds, Limited Sport Mod | Results | | Melvin Whitworth (600cc Modifieds) | 8th | - | - | 8th |
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