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| 6/11/2021 | Princeton Speedway - Princeton, MN Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | 6th (DNF) | - | - | 14th |
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| 6/18/2021 | Princeton Speedway - Princeton, MN Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | 7th | - | - | 9th |
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| 7/9/2021 | Princeton Speedway - Princeton, MN Weekly races Vintage Modifieds: Northern Vintage Stockcar Racers Hobby Stocks, A Modifieds, B Modifieds, Vintage Full Body Stock Cars, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | 6th | - | - | 14th |
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| 7/16/2021 | Princeton Speedway - Princeton, MN Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | 8th | - | - | 8th |
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| 7/23/2021 | Princeton Speedway - Princeton, MN Superstock Series and hobby stock tour WISSOTA Super Stock: Fast Lane Motorsports Northland Super Stock Series Hobby Stocks, B Modifieds, Sport Compact, WISSOTA Mod Four | Results | | Jack Post (Sport Compact) | 5th | - | - | 9th |
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| 7/30/2021 | Princeton Speedway - Princeton, MN Hobby Stocks, A Modifieds, Winged A-Class, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four | Results | | Jack Post (Sport Compact) | 6th | - | - | 6th |
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| 7/31/2021 | North Central Speedway - Brainerd, MN Hobby Stocks, A Modifieds, Winged A-Class, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four | Results | | Jack Post (Sport Compact) | 6th | - | - | 14th |
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| 8/6/2021 | Princeton Speedway - Princeton, MN Hobby Stocks, A Modifieds, Winged A-Class, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | 4th | - | - | 9th (DNF) |
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| 8/13/2021 | Princeton Speedway - Princeton, MN Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | 9th | - | - | 9th |
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| 8/14/2021 | North Central Speedway - Brainerd, MN Bud Jones and sons night Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | 7th | - | - | 12th |
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| 9/4/2021 | North Central Speedway - Brainerd, MN Mighty Axe Hobby Stocks, A Modifieds, Winged A-Class, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Jack Post (Sport Compact) | DNS | - | DNS | - |
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| 9/12/2021 | Granite City Motor Park - Sauk Rapids, MN Hornet Nationals - $1000 to win WISSOTA Hornet | Results | | Jack Post (WISSOTA Hornet) | 7th | - | - | 10th |
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| 9/26/2021 | Granite City Motor Park - Sauk Rapids, MN Special Complete Show All Classes WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Jack Post (WISSOTA Hornet) | 8th | - | - | 8th (DNF) |
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| 10/3/2021 | Granite City Motor Park - Sauk Rapids, MN Day 2 Piston Cup Special Complete Show WISSOTA Midwest Mods, WISSOTA Mod Four, WISSOTA Modifieds, WISSOTA Late Model, WISSOTA Street Stock, WISSOTA Super Stock, WISSOTA Hornet | Results | | Jack Post (WISSOTA Hornet) | 9th | - | - | 11th |
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