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| 7/3/2021 | Merritt Speedway - Merritt, MI INDEPENDENCE DAY CELEBRATION - DAY 1 DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Sportsmans, B Modifieds, Mini Wedge, Mini Outlaws | Results | | Thomas Wilbur (DIRTcar UMP Modifieds) | 6th | - | - | 21st |
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| 7/4/2021 | Merritt Speedway - Merritt, MI INDEPENDENCE DAY - DAY 2 | ALLSTAR PERFORMANCE CHALLENGE SERIES RACES DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Sportsmans, B Modifieds, Mini Wedge, Mini Outlaws | Results | | Thomas Wilbur (DIRTcar UMP Modifieds) | 8th | - | - | 23rd |
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| 8/6/2021 | Merritt Speedway - Merritt, MI 33RD ANNUAL WOOD TIC - DAY 1 DIRTcar Late Models: Allstar Performance Challenge Series DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Sportsmans, B Modifieds, Mini Wedge, Mini Outlaws | Results | | Thomas Wilbur (DIRTcar UMP Modifieds) | 11th | - | - | - |
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| 8/7/2021 | Merritt Speedway - Merritt, MI 33RD ANNUAL WOOD TIC - DAY 2 | ALLSTAR PERFORMANCE CHALLENGE SERIES RACES DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Sportsmans, B Modifieds, Mini Wedge, Mini Outlaws | Results | | Thomas Wilbur (DIRTcar UMP Modifieds) | - | - | - | 17th |
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| 9/4/2021 | Merritt Speedway - Merritt, MI GENE KREGEAR CHAMPIONSHIP WEEKEND - DAY 1 DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Sportsmans, B Modifieds, Mini Wedge, Mini Outlaws | Results | | Thomas Wilbur (DIRTcar UMP Modifieds) | 10th | - | - | 15th |
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| 9/5/2021 | Merritt Speedway - Merritt, MI GENE KREGEAR CHAMPIONSHIP WEEKEND - DAY 2 & ALLSTAR PERFORMANCE CHALLENGE SERIES RACE #9 DIRTcar Late Models, DIRTcar UMP Modifieds, Factory Stocks, Hobby Stocks, Sportsmans, B Modifieds, Mini Wedge, Mini Outlaws | Results | | Thomas Wilbur (DIRTcar UMP Modifieds) | 10th | - | - | 21st |
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| 9/11/2021 | Merritt Speedway - Merritt, MI 360 Sprints - Winged: GLSS-Great Lakes Super Sprints 410 Sprints - Non-Winged: Great Lakes Traditional Sprints Lightning Sprints: Great Lakes Lightning Sprints DIRTcar UMP Modifieds, Hobby Stocks, B Modifieds | Results | | Thomas Wilbur (DIRTcar UMP Modifieds) | 7th | - | - | 15th |
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