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| 5/21/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Sport Mods and Stocks Cars with draw/redraw for these classes 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, Sport Compact | Results | | Madi Miller (305 Sprints - Winged) | 4th | - | - | 9th (DNF) |
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| 5/28/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$600 to win Hobby Stock and $400 to win Sport Compact 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, Sport Compact | Results | | Madi Miller (305 Sprints - Winged) | 8th | - | - | 11th |
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| 6/4/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Modifieds 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, Sport Compact | Results | | Madi Miller (305 Sprints - Winged) | 6th (DNF) | - | - | 13th |
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| 6/11/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Modified and Sprint Cars. Sponsored by Finishline 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, Sport Compact | Results | | Madi Miller (305 Sprints - Winged) | 4th | - | - | 9th |
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| 6/18/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Stock Cars 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, Sport Compact | Results | | Madi Miller (305 Sprints - Winged) | 7th | - | - | 12th |
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| 6/25/2021 | Crawford County Speedway - Denison, IA $1,500 to win at Crawford County Speedway 305 Sprints - Winged, Dirt Super Late Models, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Madi Miller (305 Sprints - Winged) | 3rd | - | - | 5th |
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| 7/2/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$600 to win Hobby Stock and $400 to win Sport Compact 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Madi Miller (305 Sprints - Winged) | 7th | - | - | DNS |
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| 7/9/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Stock Cars 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Madi Miller (305 Sprints - Winged) | 4th | - | - | 6th |
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| 7/16/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Sport Mods 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Madi Miller (305 Sprints - Winged) | 6th | - | - | 8th |
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| 7/23/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-Fair Night 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Madi Miller (305 Sprints - Winged) | 5th | - | - | 8th |
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| 7/30/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Modified 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Rain Out |
| 8/6/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Sprint Cars 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Madi Miller (305 Sprints - Winged) | 4th | - | - | 18th (DNF) |
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| 8/13/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$600 to win Hobby Stock and $400 to win Sport Compact 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Madi Miller (305 Sprints - Winged) | 3rd | - | - | 3rd |
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| 8/27/2021 | Wagner Speedway - Wagner, SD Championship Dirt Late Models, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | Madi Miller (IMCA RaceSaver Sprint Car) | 6th | - | - | 11th (DNF) |
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