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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 | | Michael Howard (DIRTcar UMP Modifieds) | 2nd | - | - | 8th |
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| 8/7/2021 | Portsmouth Raceway Park - Portsmouth, OH LEMLEY MOTORSPORTS Mod Squad Spectacular 3K to win Modifieds & MARY'S CLOTHESLINE BACK PACK GIVEAWAY DIRTcar UMP Modifieds, Dirt Late Models, Economy Late Models, Limited Sport Mod | Results | | Michael Howard (DIRTcar UMP Modifieds) | 7th | - | 3rd | 18th |
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| 10/14/2021 | Portsmouth Raceway Park - Portsmouth, OH 41st ANNUAL DIRT TRACK WORLD CHAMPIONSHIP DIRTcar UMP Modifieds | Results | | Michael Howard (DIRTcar UMP Modifieds) | 2nd | - | - | - |
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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 | | Michael Howard (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 | | Michael Howard (DIRTcar UMP Modifieds) | - | - | - | 24th |
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