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| 4/24/2021 | Hamilton County Speedway - Webster City, IA Modified Madness $2,000-to-Win Mods A Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Adam Mietzner (USRA B-Mods) | 8th | - | 3rd | 14th |
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| 5/1/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Adam Mietzner (USRA B-Mods) | 3rd | - | - | 24th (DNF) |
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| 5/8/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Adam Mietzner (USRA B-Mods) | 4th | - | - | 19th |
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| 5/14/2021 | Fayette County Speedway - West Union, IA Weekly Points Race 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Adam Mietzner (USRA B-Mods) | 3rd | - | - | 9th |
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| 5/29/2021 | Deer Creek Speedway - Spring Valley, MN 18th Annual USMTS Southern MN Spring Challenge A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Stock Cars, WISSOTA Midwest Mods | Results | | Adam Mietzner (USRA B-Mods) | 4th | - | 6th | - |
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| 5/30/2021 | Winneshiek Raceway - Decorah, IA 13th Annual USMTS Nordic Nationals A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Adam Mietzner (USRA B-Mods) | 3rd | - | - | 9th |
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| 6/4/2021 | Fayette County Speedway - West Union, IA Weekly Points Race - Sponsored by Pioneer & United Beverage 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Adam Mietzner (USRA B-Mods) | 6th | - | - | 8th |
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| 6/11/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by Alpha Tap ~ $1000 to win BMods 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Adam Mietzner (USRA B-Mods) | 3rd | - | - | 4th |
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| 6/12/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, USRA Late Models, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Adam Mietzner (USRA B-Mods) | 3rd | - | - | 8th |
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| 6/24/2021 | Cresco Speedway - Cresco, IA Cresco Speeway - EAST Dirt Super Late Models: SLMR Late Model Series USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Adam Mietzner (USRA B-Mods) | 8th | - | - | 15th (DNF) |
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| 7/23/2021 | Cresco Speedway - Cresco, IA Friday Night Races at Cresco Speedway 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Adam Mietzner (USRA B-Mods) | 6th (DNF) | - | - | 9th |
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| 7/24/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, USRA Late Models, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Adam Mietzner (USRA B-Mods) | 6th | - | 1st | 14th |
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| 7/31/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Rain Out |
| 8/7/2021 | Winneshiek Raceway - Decorah, IA Upper Iowa Speedway - Weekly Points Race USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners, Mod Lites | Results | | Adam Mietzner (USRA B-Mods) | 2nd | - | - | 12th |
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| 8/13/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Sponsored by Chase Trucking ~ Hall of Fame - $1000 to win Hobby Stocks 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Adam Mietzner (USRA B-Mods) | 2nd | - | - | 11th |
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| 8/21/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Adam Mietzner (USRA B-Mods) | 7th (DNF) | - | - | 12th |
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