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5/14/2021 | Casper Speedway - Casper, WY Stock Cars, Dwarf, IMCA Modified, IMCA Hobby Stock, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 5th | - | - | 7th |
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5/28/2021 | Casper Speedway - Casper, WY Stock Cars, Vintage Modifieds, IMCA Hobby Stock, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 4th | - | - | 4th |
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6/4/2021 | Casper Speedway - Casper, WY Stock Cars, Dwarf, IMCA Modified, IMCA Hobby Stock, WISSOTA Midwest Mods | Results | Mason Haller (Stock Cars) | 9th (DNF) | - | - | DNS |
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6/13/2021 | Casper Speedway - Casper, WY Stock Cars, Non-Winged Sprints, 305 Sprints - Non-Winged, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 2nd | - | - | 6th |
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7/4/2021 | Casper Speedway - Casper, WY Mike Welch Memorial Mod Four Series Stock Cars, Vintage Modifieds, Dwarf, IMCA Modified, IMCA Hobby Stock, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 2nd | - | - | 4th |
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7/16/2021 | Casper Speedway - Casper, WY Wissota Mid West Modified Daniel Dickerson Memorial Stock Cars, Vintage Modifieds, Dwarf, IMCA Hobby Stock, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 3rd | - | - | 8th |
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7/23/2021 | Casper Speedway - Casper, WY Stock Cars, Vintage Modifieds, Dwarf, IMCA Modified, IMCA Hobby Stock, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 6th | - | - | 4th |
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7/25/2021 | Casper Speedway - Casper, WY High Plains Late Model Series - Bob Schierkolk Memorial Dirt Super Late Models, Stock Cars, Vintage Modifieds, Dwarf, IMCA Hobby Stock, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 6th | - | - | 4th |
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8/6/2021 | Casper Speedway - Casper, WY Championship Night Stock Cars, Vintage Modifieds, Dwarf, IMCA Modified, IMCA Hobby Stock, WISSOTA Midwest Mods, WISSOTA Mod Four | Results | Mason Haller (Stock Cars) | 4th | - | - | 5th |
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