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| 5/1/2021 | 141 Speedway - Maribel, WI Salute to Armed Forces / 141 Championship Cup Race #3 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Wittkopf (IMCA Northern SportMod) | 6th | - | 4th | 11th |
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| 5/7/2021 | Outagamie Speedway - Seymour, WI 2021 Season Opener by Klink Equipment Street Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Robert Wittkopf (IMCA Northern SportMod) | 1st | - | - | 1st |
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| 5/8/2021 | 141 Speedway - Maribel, WI Mother's Day / "Red" Race $1,000.00 to Win Red IMCA Modified / 141 Championship Cup Race #4 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Wittkopf (IMCA Northern SportMod) | 1st | - | - | 4th |
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| 5/14/2021 | Outagamie Speedway - Seymour, WI Street Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Robert Wittkopf (IMCA Northern SportMod) | 3rd | - | - | 8th |
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| 5/15/2021 | 141 Speedway - Maribel, WI 141 Championship Cup Race #5 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Wittkopf (IMCA Northern SportMod) | 3rd | - | - | 24th |
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| 5/29/2021 | 141 Speedway - Maribel, WI Nathan Bouche Memorial / $1,000.00 to Win Stock Cars Triple Creek Series / 141 Championship Cup #7 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Wittkopf (IMCA Northern SportMod) | 2nd | - | - | 24th |
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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 | | Robert Wittkopf (IMCA Northern SportMod) | 5th | - | 1st | 15th |
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| 7/16/2021 | Outagamie Speedway - Seymour, WI 5 Divisions Street Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Robert Wittkopf (IMCA Northern SportMod) | 6th | - | DNS | - |
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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 | | Robert Wittkopf (IMCA Northern SportMod) | - | - | - | - |
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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 | | Robert Wittkopf (IMCA Northern SportMod) | 2nd | - | - | 8th |
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| 8/18/2021 | 141 Speedway - Maribel, WI Captain of the Creek III $10,000.00 to Win IMCA Northern SportMods - Qualifying Sport Compact, IMCA Modified, IMCA Northern SportMod | Results | | Robert Wittkopf (IMCA Northern SportMod) | 1st | - | - | 10th |
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| 8/19/2021 | 141 Speedway - Maribel, WI Captain of the Creek III $10,000.00 to Win IMCA Northern SportMods Stock Cars, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Wittkopf (IMCA Northern SportMod) | - | - | - | 10th |
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| 9/4/2021 | The Hill Raceway - Sturgeon Bay, WI The Hill Special Stock Cars, B Modifieds, Street Stocks, Dirt 4 cyl Modifieds | Results | | Robert Wittkopf (B Modifieds) | 4th | - | - | 17th |
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| 9/10/2021 | Outagamie Speedway - Seymour, WI 410 Sprints - Winged: IRA Interstate Racing Association Baby Grand, IMCA Northern SportMod | Results | | Robert Wittkopf (IMCA Northern SportMod) | 1st | - | - | 2nd |
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| 9/18/2021 | Outagamie Speedway - Seymour, WI 2021 FALL BRAWL presented by KLINK EQUIPMENT Street Stocks, Dirt Late Models, Baby Grand, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Robert Wittkopf (IMCA Northern SportMod) | 9th (DNF) | - | 6th | - |
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| 9/24/2021 | 141 Speedway - Maribel, WI 12th Annual Treek Strong Creek Classic / "Blue" Race $1,000.00 to Win IMCA Modifieds Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Wittkopf (IMCA Northern SportMod) | 1st | - | - | 18th |
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| 9/25/2021 | 141 Speedway - Maribel, WI 12th Annual Treek Strong Creek Classic Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Robert Wittkopf (IMCA Northern SportMod) | 2nd | - | - | 8th |
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