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| 5/30/2021 | Portsmouth Raceway Park - Portsmouth, OH CLETUS CLASSIC - MODIFIEDS $1,231 TO WIN & SALUTE THE TROOPS NIGHT by VALLERY FORD OF WAVERLY DIRTcar UMP Modifieds, Dirt Late Models, Economy Late Models, Limited Sport Mod | Results | | Austin Linvile (DIRTcar UMP Modifieds) | 9th | - | DNS | - |
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| 8/21/2021 | Portsmouth Raceway Park - Portsmouth, OH BERNDT & MURFIN INSURANCE - BOONE COLEMAN MEMORIAL GATOR 50 DIRTcar UMP Modifieds, Dirt Late Models, Economy Late Models, Limited Sport Mod | Results | | Austin Linvile (DIRTcar UMP Modifieds) | 8th | - | - | 16th |
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| 8/28/2021 | Portsmouth Raceway Park - Portsmouth, OH Weaver's Gas & Oil - OVSCA Sprints and Pepsi Employee Night Sprint Cars, DIRTcar UMP Modifieds, Dirt Late Models, Limited Sport Mod | Results | | Austin Linvile (DIRTcar UMP Modifieds) | 8th | - | - | 16th |
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| 9/4/2021 | Portsmouth Raceway Park - Portsmouth, OH River Days Rumble - Presented by Pepsi Dirt Super Late Models: Lucas Oil Late Model Dirt Series DIRTcar UMP Modifieds, Limited Sport Mod | Results | | Austin Linvile (DIRTcar UMP Modifieds) | 6th | - | - | 11th |
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| 9/18/2021 | Portsmouth Raceway Park - Portsmouth, OH SOUTHERN OHIO SHRINE CLUB - Meet The Drivers Night DIRTcar UMP Modifieds, Dirt Late Models, Economy Late Models, Limited Sport Mod | Results | | Austin Linvile (DIRTcar UMP Modifieds) | 6th | - | - | 16th |
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| 10/14/2021 | Portsmouth Raceway Park - Portsmouth, OH 41st ANNUAL DIRT TRACK WORLD CHAMPIONSHIP DIRTcar UMP Modifieds | Results | | Austin Linvile (DIRTcar UMP Modifieds) | 6th | - | 14th | - |
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| 10/15/2021 | Portsmouth Raceway Park - Portsmouth, OH 41st Annual Dirt Track World Championship Dirt Super Late Models: Lucas Oil Late Model Dirt Series DIRTcar UMP Modifieds, Pro Legends, Economy Late Models | Results | | Austin Linvile (DIRTcar UMP Modifieds) | - | - | - | - |
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| 10/16/2021 | Portsmouth Raceway Park - Portsmouth, OH 41st Annual Dirt Track World Championship Dirt Super Late Models: Lucas Oil Late Model Dirt Series DIRTcar UMP Modifieds, Pro Legends, Economy Late Models | Results | | Austin Linvile (DIRTcar UMP Modifieds) | - | - | - | - |
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