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| 4/10/2021 | Grayson County Speedway - Bells, TX Race Program / Toms Outlaw Modified Series A Modifieds: TOMS - Touring Outlaw Modified Series Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Southern SportMod | Results | | Shawn Marquez (600cc Modifieds) | 4th | - | - | DNS |
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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 | | Shawn Marquez (600cc Modifieds) | DNS | - | - | DNS |
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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 | | Shawn Marquez (600cc Modifieds) | 6th | - | - | DNS |
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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 | | Shawn Marquez (600cc Modifieds) | 3rd | - | - | 16th (DNF) |
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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 | | Shawn Marquez (600cc Modifieds) | 2nd | - | - | 4th |
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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 | | Shawn Marquez (600cc Modifieds) | 1st | - | - | 6th |
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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 | | Shawn Marquez (600cc Modifieds) | 1st | - | - | 16th (DNF) |
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| 10/2/2021 | Hunt County Raceway - Greenville, TX TOMS Modifieds A Modifieds: TOMS - Touring Outlaw Modified Series Stock Cars, Restricted 'A' Class, Winged A-Class, Super Stocks, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Shawn Marquez (USRA Limited Mods) | 1st | - | - | 5th |
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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 | | Shawn Marquez (Limited Sport Mod) | 9th | - | - | 5th |
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