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| 4/10/2021 | Jackson Motor Speedway - Byram, MS Weekly Racing DIRTcar UMP Modifieds, Factory Stocks, CRUSA Street Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | DNS | - | - | DNS |
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| 4/17/2021 | Jackson Motor Speedway - Byram, MS 360 Sprints - Winged: ASCS Mid-South Region Factory Stocks, CRUSA Street Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | DNS | - | - | DNS |
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| 5/8/2021 | Pike County Speedway - Magnolia, MS Power Wheel Night / Weekly Racing DIRTcar UMP Modifieds, Stock Cars, Hornets, CRUSA Street Stocks, CRUSA Dirt Late Models, Limited Modified, Limited Sport Mod, Pure Stock, Dirt Crate Late Models | Results | | Marilyn Williams (Stock Cars) | - | - | - | - |
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| 5/15/2021 | Jackson Motor Speedway - Byram, MS MSCCS Super Late Models & Weekly Racing Dirt Super Late Models, Factory Stocks, CRUSA Street Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | 6th | - | - | 5th |
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| 5/29/2021 | Jackson Motor Speedway - Byram, MS Weekly Racing Factory Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | 3rd | - | - | 5th |
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| 6/5/2021 | Jackson Motor Speedway - Byram, MS 16th Annual USCS Sprint Car Speedweek Finale 360 Sprints - Winged: USCS United Sprint Car Series Factory Stocks, CRUSA Street Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | 7th | - | - | DNS |
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| 6/12/2021 | Jackson Motor Speedway - Byram, MS Weekly Racing Factory Stocks, CRUSA Street Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | 8th | - | - | 6th |
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| 6/26/2021 | Jackson Motor Speedway - Byram, MS Weekly Racing Factory Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | 4th | - | - | 4th |
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| 7/24/2021 | Jackson Motor Speedway - Byram, MS Weekly Racing Factory Stocks, Winged A-Class, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | - | - | - | - |
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| 7/31/2021 | Jackson Motor Speedway - Byram, MS MSCCS Super Late Models & Weekly Racing Dirt Super Late Models, Factory Stocks, CRUSA Street Stocks, CRUSA Dirt Late Models, Sport Compact, CRUSA Late Model Sportsman | Results | | Marilyn Williams (Sport Compact) | 3rd | - | - | 8th |
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