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| 5/22/2021 | 141 Speedway - Maribel, WI 141 Championship Cup Race #6 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 8th | - | 5th | - |
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| 5/30/2021 | The Hill Raceway - Sturgeon Bay, WI Nathan Bouche Memorial Stock Cars, A Modifieds, B Modifieds, Street Stocks, Dirt 4 cyl Modifieds | Results | | Mark Joski (A Modifieds) | 9th (DNF) | - | - | 6th |
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| 6/16/2021 | 141 Speedway - Maribel, WI Clash at the Creek XIII $10,000.00 to Win IMCA Modifieds IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 8th | - | - | 58th |
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| 6/17/2021 | 141 Speedway - Maribel, WI Clash at The Creek XIII $10,000.00 to Win IMCA Modifieds IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 9th | - | - | - |
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| 7/10/2021 | 141 Speedway - Maribel, WI Christmas in July St Jude's Fundraiser / Triple Creek Stock Cars $1,000.00 to Win / 141 CC #11 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 1st | - | - | 8th |
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| 7/17/2021 | 141 Speedway - Maribel, WI Pepsi Fan Appreciation Free Corn Feed / 141 Championship Cup Race #12 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 7th | - | - | 15th |
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| 7/18/2021 | Luxy Raceway - Luxemburg, WI Eric Van Iten Memorial Night Street Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 4th | - | 4th | 15th |
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| 7/24/2021 | The Hill Raceway - Sturgeon Bay, WI Street Stock Busch Shootout Stock Cars, A Modifieds, B Modifieds, Street Stocks, Dirt 4 cyl Modifieds | Results | | Mark Joski (A Modifieds) | 5th (DNF) | - | - | DNS |
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| 8/1/2021 | Luxy Raceway - Luxemburg, WI Village Kitchen Presents Mod Mania! Street Stocks, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 8th (DNF) | - | 5th | - |
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| 8/13/2021 | Outagamie Speedway - Seymour, WI Four to go.... Street Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Mark Joski (IMCA Modified) | 6th | - | 3rd | 12th |
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| 8/14/2021 | 141 Speedway - Maribel, WI Mechanics Races / Triple Creek Series $1,000.00 to Win Stock Cars / CC #14 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 8th | - | 4th | 10th |
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| 8/15/2021 | Luxy Raceway - Luxemburg, WI Gandrud Auto Group Presents: Back to School Night featuring Backpack Giveaway Street Stocks, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 1st | - | - | 1st |
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| 8/22/2021 | Luxy Raceway - Luxemburg, WI Robinson Inc Night at the Races Street Stocks, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Mark Joski (IMCA Modified) | 7th | - | - | 11th |
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| 9/17/2021 | Marshalltown Speedway - Marshalltown, IA 15th Annual World Nationals IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Mark Joski (IMCA Modified) | 10th (DNF) | - | DNS | - |
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| 9/18/2021 | Marshalltown Speedway - Marshalltown, IA 15th Annual World Nationals IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Mark Joski (IMCA Modified) | 3rd | - | - | 20th (DNF) |
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