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| 5/20/2021 | KRA Speedway - Willmar, MN Season Opener sponsored by Farm Rite Equipment of Willmar Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 9th | - | - | 9th |
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| 5/31/2021 | Madison Speedway - Madison, MN Season Opener Stock Cars, Economy Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 6th | - | - | 12th (DNF) |
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| 6/3/2021 | KRA Speedway - Willmar, MN Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 7th | - | - | 13th |
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| 6/17/2021 | KRA Speedway - Willmar, MN Jeff Isdal Memorial Street Stock Special presented by Deering Sales Inc. Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 7th | - | - | 15th |
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| 7/1/2021 | KRA Speedway - Willmar, MN Mark Geer Memorial Super Stock Special sponsored by Donnelly Truck Service & Truck Wash Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 7th | - | - | 25th (DNF) |
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| 7/29/2021 | KRA Speedway - Willmar, MN Tires Plus of Willmar Night Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 3rd | - | - | 9th |
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| 8/5/2021 | KRA Speedway - Willmar, MN Ziegler Cat Night w/Mod Four Special and Meet the Drivers Night Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 7th | - | - | 10th |
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| 8/12/2021 | KRA Speedway - Willmar, MN Dooley's Petroleum presents Kandiyohi County Fair Races Pure Stock, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 7th | - | - | 12th (DNF) |
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| 8/13/2021 | Fiesta City Speedway - Montevideo, MN Super Stock Special Factory Stocks, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 8th | - | - | 8th |
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| 8/14/2021 | Madison Speedway - Madison, MN Super Stock Special & Timmy Ims Midwest Modified Special Stock Cars, Economy Late Models, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 6th | - | - | 13th |
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| 8/19/2021 | KRA Speedway - Willmar, MN $1,500 to win at KRA Speedway Dirt Late Models: Tri-State Late Models Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 6th | - | - | 12th (DNF) |
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| 9/6/2021 | Madison Speedway - Madison, MN Season Championship Night Stock Cars, Economy Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 6th | - | - | 13th |
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| 9/9/2021 | KRA Speedway - Willmar, MN NAPA Central MN Free Grandstand Night in memory of Charlie Nelson Pure Stock, WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 7th | - | - | 10th |
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| 9/12/2021 | Madison Speedway - Madison, MN Lac Qui Parle County Fair Races Stock Cars, Economy Late Models, WISSOTA Midwest Mods, WISSOTA Modifieds, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Michael Rindfleisch (WISSOTA Super Stock) | 4th | - | - | 9th |
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