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| 4/2/2021 | Marshalltown Speedway - Marshalltown, IA 141 Speedway / Left Turn Lounge IMCA FrostBuster IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jerry Duggan (IMCA Northern SportMod) | 10th | - | 8th | - |
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| 4/3/2021 | Boone Speedway - Boone, IA IMCA Frostbuster IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jerry Duggan (IMCA Northern SportMod) | 7th | - | 9th | - |
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| 4/17/2021 | 141 Speedway - Maribel, WI 141 Championship Cup Opener Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Jerry Duggan (IMCA Northern SportMod) | 3rd | - | - | 20th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 2nd | - | - | 18th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 5th | - | 3rd | 23rd |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 7th | - | 8th | 16th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 2nd | - | - | 8th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 6th | - | 1st | 15th |
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| 6/5/2021 | 141 Speedway - Maribel, WI Bank First Coin Drop / 141 Championship Cup Race #8 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Jerry Duggan (IMCA Northern SportMod) | 5th | - | 2nd | 15th |
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| 6/12/2021 | 141 Speedway - Maribel, WI Prestige Custom Cabinetry "White" Race $1,000.00 to Win IMCA Modifieds / 141 Championship Cup #9 Stock Cars, Sportsmans, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Jerry Duggan (IMCA Northern SportMod) | 8th | - | 7th | 16th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 6th | - | 3rd | 19th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 7th | - | 6th | - |
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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 | | Jerry Duggan (B Modifieds) | 3rd | - | - | 5th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 8th | - | - | 7th |
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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 | | Jerry Duggan (IMCA Northern SportMod) | 8th | - | 2nd | 22nd |
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| 8/21/2021 | The Hill Raceway - Sturgeon Bay, WI Championship Night Stock Cars, A Modifieds, B Modifieds, Street Stocks, Dirt 4 cyl Modifieds | Results | | Jerry Duggan (B Modifieds) | 9th | - | - | 12th |
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| 10/2/2021 | Luxy Raceway - Luxemburg, WI The Return of the Fall Classic in the 'Burg Street Stocks, Baby Grand, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Jerry Duggan (IMCA Northern SportMod) | 6th | - | 5th | - |
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