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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 | | Brandon Leeman (IMCA Modified) | 5th | - | 5th | - |
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| 4/10/2021 | Boone Speedway - Boone, IA Season Opener IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 8th | - | 13th (DNF) | - |
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| 4/17/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #2 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 3rd | - | - | 20th |
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| 4/24/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #3 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 6th | - | - | 13th (DNF) |
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| 4/30/2021 | Boone Speedway - Boone, IA Hawkeye 100 World of Outlaws Late Models Dirt Super Late Models: World of Outlaws - Late Models A Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Brandon Leeman (IMCA Modified) | 9th | - | 3rd | - |
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| 5/1/2021 | Boone Speedway - Boone, IA Hawkeye 100 World of Outlaws Late Models Dirt Super Late Models: World of Outlaws - Late Models A Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Brandon Leeman (IMCA Modified) | 4th | - | 4th | - |
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| 5/8/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #4 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Rain Out |
| 5/15/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #5 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 5th | - | - | 14th |
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| 5/22/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #6 Dirt Mini Trucks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 1st | - | - | 10th |
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| 5/29/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #7 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 4th | - | - | 16th |
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| 6/5/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #8 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 8th (DNF) | - | - | 14th |
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| 6/12/2021 | Boone Speedway - Boone, IA Saturday Night Series #9 + IMCA Weekly Points – $500 to win Stock Cars IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 2nd | - | - | 21st |
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| 6/19/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #10 Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 3rd | - | - | 12th |
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| 6/26/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #11 + Hawkeye Challenge Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 4th | - | - | 11th |
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| 7/3/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #12 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 3rd | - | - | 11th |
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| 7/17/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #14 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 2nd | - | - | 8th |
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| 7/24/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #15 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 8th | - | - | 19th |
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| 7/31/2021 | Boone Speedway - Boone, IA Salute to Veterans/Saturday Night Series Weekly #16 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 8th | - | 8th | - |
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| 8/7/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #17 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 3rd | - | - | 10th |
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| 8/14/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #18 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 1st | - | - | 12th |
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| 8/21/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #19 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 2nd | - | - | 14th |
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| 8/28/2021 | Boone Speedway - Boone, IA Season Championship IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | - | - | - | 5th |
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| 9/4/2021 | Boone Speedway - Boone, IA Wild Rose Casino Prelude to the Super Nationals IMCA Modified, IMCA Stock Car, Pro Dwarf, IMCA Mod Lite | Results | | Brandon Leeman (IMCA Modified) | 6th | - | 9th | - |
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| 9/8/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Brandon Leeman (IMCA Modified) | 7th (DNF) | - | - | - |
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| 9/9/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Sportsmans, Midwest Modifieds, Vintage Full Body Stock Cars, IMCA Modified, IMCA Stock Car | Results | | Brandon Leeman (IMCA Modified) | 9th | - | - | - |
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| 9/10/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Generic 2, IMCA Modified, IMCA Stock Car | Results | | Brandon Leeman (IMCA Modified) | 4th | - | 8th | - |
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| 9/11/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Midwest Modifieds, Vintage Full Body Stock Cars, Vintage Modifieds, Generic 1, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Brandon Leeman (IMCA Modified) | 12th (DNF) | - | - | - |
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