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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 | | Don Scheffler (IMCA Modified) | 6th | - | 7th | - |
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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 | | Don Scheffler (IMCA Modified) | 7th | - | 8th | - |
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| 5/16/2021 | Wilmot Raceway - Wilmot, WI Lightning Sprints: IRA Lightning Sprints Non Wing Crate Sprints: Wisconsin wingLESS Sprints A Modifieds, Street Stocks, Dirt Late Models | Results | | Don Scheffler (A Modifieds) | 3rd | - | - | 17th | | Don Scheffler (Dirt Late Models) | - | - | - | - |
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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 | | Don Scheffler (IMCA Modified) | 9th | - | 8th | - |
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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 | | Don Scheffler (IMCA Modified) | 8th | - | 10th | - |
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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 | | Don Scheffler (IMCA Modified) | 11th | - | - | 75th |
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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 | | Don Scheffler (IMCA Modified) | 9th | - | - | - |
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| 6/18/2021 | Wilmot Raceway - Wilmot, WI Non Wing Crate Sprints: Wisconsin wingLESS Sprints A Modifieds, Street Stocks, Hornets | Results | | Don Scheffler (A Modifieds) | 4th | - | - | 6th |
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| 7/3/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing w/ Bus Races Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Don Scheffler (IMCA Modified) | 8th | - | - | 23rd |
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| 9/4/2021 | Wilmot Raceway - Wilmot, WI Wilmot Championship Night Lightning Sprints: IRA Lightning Sprints Non Wing Crate Sprints: Wisconsin wingLESS Sprints A Modifieds, Street Stocks, Hornets | Results | | Don Scheffler (A Modifieds) | 3rd | - | - | 4th |
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| 9/11/2021 | Wilmot Raceway - Wilmot, WI Non Wing Crate Sprints: Wisconsin wingLESS Sprints A Modifieds, Street Stocks, Dirt Late Models, Hornets | Results | | Don Scheffler (A Modifieds) | 3rd | - | - | 4th |
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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 | | Don Scheffler (IMCA Modified) | 4th | - | - | 16th |
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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 | | Don Scheffler (IMCA Modified) | 7th | - | 8th | - |
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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 | | Don Scheffler (IMCA Modified) | 8th | - | 9th | - |
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| 10/16/2021 | Dubuque Fairgrounds Speedway - Dubuque, IA Iowa Dirt Nationals Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, 600cc Modifieds, Sport Compact, IMCA Modified | Results | | Don Scheffler (A Modifieds) | 7th | - | 7th | - |
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