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| 4/3/2021 | Grayson County Speedway - Bells, TX Opening Night / Full Program Factory Stocks, Hobby Stocks, 600cc Modifieds, IMCA Modified, IMCA Southern SportMod | Results | | Clay Marr (IMCA Southern SportMod) | 4th | - | - | 8th (DNF) |
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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 | | Clay Marr (IMCA Southern SportMod) | 2nd | - | - | 5th |
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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 | | Clay Marr (IMCA Southern SportMod) | 1st | - | - | 5th |
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| 5/14/2021 | Boyd Raceway - Boyd, TX Factory Stocks, A Modifieds, Street Stocks, Limited Sport Mod, Sport Compact, IMCA Sport Compact | Results | | Clay Marr (Limited Sport Mod) | 7th | - | - | DNS |
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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 | | Clay Marr (IMCA Southern SportMod) | 8th | - | - | DNS |
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| 5/26/2021 | Southern Oklahoma Speedway - Ardmore, OK All Star Shootout Stock Cars, Limited Sport Mod, IMCA Modified | Results | | Clay Marr (Limited Sport Mod) | DNS | - | 14th | - |
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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 | | Clay Marr (IMCA Southern SportMod) | 5th | - | - | 5th |
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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 | | Clay Marr (IMCA Southern SportMod) | 4th | - | - | 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 | | Clay Marr (IMCA Southern SportMod) | 6th | - | - | 9th |
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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 | | Clay Marr (IMCA Southern SportMod) | 6th | - | - | 3rd |
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| 7/17/2021 | Grayson County Speedway - Bells, TX Race Program / TBA Factory Stocks, Hobby Stocks, 600cc Modifieds, Limited Modified, IMCA Southern SportMod | Results | | Clay Marr (IMCA Southern SportMod) | 6th | - | - | DNS |
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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 | | Clay Marr (IMCA Southern SportMod) | 6th | - | - | 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 | | Clay Marr (IMCA Southern SportMod) | 4th | - | - | 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 | | Clay Marr (IMCA Southern SportMod) | 5th | - | - | 6th |
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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 | | Clay Marr (IMCA Southern SportMod) | 2nd | - | - | 6th |
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| 8/28/2021 | Grayson County Speedway - Bells, TX Race Program / Topless Mods Factory Stocks, Hobby Stocks, 600cc Modifieds, Limited Modified, IMCA Southern SportMod | Results | | Clay Marr (IMCA Southern SportMod) | 5th | - | - | 7th |
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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 | | Clay Marr (IMCA Southern SportMod) | 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 | | Clay Marr (IMCA Southern SportMod) | 5th | - | - | 6th |
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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 | | Clay Marr (IMCA Southern SportMod) | 3rd | - | - | 7th |
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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 | | Clay Marr (IMCA Southern SportMod) | 4th | - | - | 6th |
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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 | | Clay Marr (Limited Sport Mod) | 12th | - | - | 8th |
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| 10/15/2021 | Southern Oklahoma Speedway - Ardmore, OK TOMS Nationals - Night 1 A Modifieds: TOMS - Touring Outlaw Modified Series Hobby Stocks, Limited Sport Mod | Results | | Clay Marr (Limited Sport Mod) | 3rd | - | - | - |
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| 10/16/2021 | Southern Oklahoma Speedway - Ardmore, OK TOMS Nationals - Night 2 A Modifieds: TOMS - Touring Outlaw Modified Series Hobby Stocks, Limited Sport Mod | Results | | Clay Marr (Limited Sport Mod) | - | - | 11th | - |
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