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| 3/11/2021 | Southern Oklahoma Speedway - Ardmore, OK Southern Stampede Night 1 Stock Cars, 600cc Modifieds, Limited Sport Mod, IMCA Modified | Results | | Dan Mackenthun (Stock Cars) | 4th | - | 1st | 4th |
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| 3/12/2021 | Southern Oklahoma Speedway - Ardmore, OK Southern Stampede Night 2 Stock Cars, 600cc Modifieds, Limited Sport Mod, IMCA Modified | Results | | Dan Mackenthun (Stock Cars) | 3rd | - | - | 2nd |
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| 3/13/2021 | Kennedale Speedway Park - Kennedale, TX Factory Stocks, Stock Cars, Dwarf, IMCA Southern SportMod, IMCA Stock Car, IMCA Sport Compact | Results | | Dan Mackenthun (IMCA Stock Car) | 5th | - | - | 11th |
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| 4/2/2021 | Marshalltown Speedway - Marshalltown, IA 141 Speedway / Left Turn Lounge IMCA FrostBuster IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Dan Mackenthun (IMCA Stock Car) | 6th | - | 1st | 11th |
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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 | | Dan Mackenthun (IMCA Stock Car) | 4th | - | 1st | 6th |
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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 | | Dan Mackenthun (IMCA Stock Car) | 3rd | - | - | 5th |
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| 4/16/2021 | Princeton Speedway - Princeton, MN Season Opener Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Dan Mackenthun (IMCA Stock Car) | 1st | - | - | 8th (DNF) |
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| 4/17/2021 | North Central Speedway - Brainerd, MN Season Opener Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Dan Mackenthun (IMCA Stock Car) | 1st | - | - | 3rd |
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| 4/23/2021 | Hancock County Speedway - Britt, IA Weekly Racing Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Dan Mackenthun (Stock Cars) | 4th | - | - | 5th |
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| 4/30/2021 | 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 | | Dan Mackenthun (IMCA Stock Car) | 2nd | - | - | 1st |
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| 5/1/2021 | North Central Speedway - Brainerd, MN Ron Johnson memorial race Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Dan Mackenthun (IMCA Stock Car) | 2nd | - | - | 2nd |
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| 5/14/2021 | Princeton Speedway - Princeton, MN Meet the drivers night (kids Night) Hobby Stocks, A Modifieds, Winged A-Class, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Dan Mackenthun (IMCA Stock Car) | 3rd | - | - | 1st |
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| 5/21/2021 | Princeton Speedway - Princeton, MN Hobby Stocks, A Modifieds, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Dan Mackenthun (IMCA Stock Car) | 3rd | - | - | 1st |
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| 5/25/2021 | Jackson Motorplex - Jackson, MN Bank Midwest IMCA Series presented by Zac's Trailer Sales Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Dan Mackenthun (Stock Cars) | 2nd | - | - | 5th |
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| 5/28/2021 | Princeton Speedway - Princeton, MN Late Model Show WISSOTA Late Model: Wissota Late Model Challenge Series Hobby Stocks, Sport Compact, IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 4th | - | - | 1st |
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| 6/4/2021 | 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 | | Dan Mackenthun (IMCA Stock Car) | 3rd | - | - | 3rd |
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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 | | Dan Mackenthun (IMCA Stock Car) | 2nd | - | - | 3rd |
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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 | | Dan Mackenthun (IMCA Stock Car) | 1st | - | - | 2nd |
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| 6/24/2021 | Princeton Speedway - Princeton, MN Siercks Memorial Hobby Stocks, A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 1st | - | - | 8th |
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| 6/25/2021 | North Central Speedway - Brainerd, MN 10000 lakes 10k A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 5th | - | 3rd | - |
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| 6/26/2021 | North Central Speedway - Brainerd, MN 10000 lakes 10k IMCA Modified: Land of Ten Thousand Lakes 10K A Modifieds, B Modifieds, IMCA Northern SportMod, IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 6th | - | 8th | - |
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| 6/27/2021 | Granite City Motor Park - Sauk Rapids, MN IMCA - $10K to Win! IMCA Modified, IMCA Northern SportMod, IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 8th | - | 7th | - |
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| 6/29/2021 | Clay County Fair Speedway - Spencer, IA Midwest Madness Tour IMCA Modified: Midwest Madness Tour IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Dan Mackenthun (IMCA Stock Car) | 9th (DNF) | - | 3rd | 11th |
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| 6/30/2021 | Buena Vista Raceway - Alta, IA Midwest Madness Tour/Kyle Suter Memorial Race IMCA Modified: Midwest Madness Tour Hobby Stocks, Stock Cars, B Modifieds, Sport Compact, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Dan Mackenthun (IMCA Stock Car) | 5th | - | - | 17th (DNF) |
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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 | | Dan Mackenthun (IMCA Stock Car) | 2nd | - | - | 1st |
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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 | | Dan Mackenthun (IMCA Stock Car) | 3rd | - | - | 5th |
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| 7/23/2021 | Hancock County Speedway - Britt, IA Sponsored by Schleusner Dirt Works/HCSA Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Dan Mackenthun (Stock Cars) | - | - | - | 9th |
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| 7/29/2021 | Kossuth County Speedway - Algona, IA Hunting with Heroes Salute to Veterans Night A Modifieds, B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Dan Mackenthun (Street Stocks) | 3rd | - | - | 12th |
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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 | | Dan Mackenthun (IMCA Stock Car) | 1st | - | - | 5th |
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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 | | Dan Mackenthun (IMCA Stock Car) | 4th | - | - | 4th |
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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 | | Dan Mackenthun (IMCA Stock Car) | 3rd | - | - | 4th |
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| 8/29/2021 | Fairmont Raceway - Fairmont, MN Bacon Town Showdown / Kids Night Make up Race - No Karts Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Street Stocks, Sport Compact | Results | | Dan Mackenthun (Stock Cars) | 5th | - | - | 4th |
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| 9/5/2021 | North Central Speedway - Brainerd, MN Mighty Axe night 2 Hobby Stocks, A Modifieds, Winged A-Class, B Modifieds, Sport Compact, IMCA Stock Car, WISSOTA Mod Four, WISSOTA Super Stock | Results | | Dan Mackenthun (IMCA Stock Car) | 5th | - | - | 10th |
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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 | | Dan Mackenthun (IMCA Stock Car) | 5th | - | 13th | - |
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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 | | Dan Mackenthun (Vintage Full Body Stock Cars) | 7th | - | - | - | | Dan Mackenthun (IMCA Stock Car) | 2nd | - | - | 21st (DNF) |
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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 | | Dan Mackenthun (IMCA Stock Car) | 5th | - | 6th | - |
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| 10/3/2021 | Mason City Motor Speedway - Mason City, IA Fall Frenzy USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Dan Mackenthun (USRA Stock Cars) | 4th | - | - | 6th |
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| 10/9/2021 | Murray County Speedway - Slayton, MN Hub City Rumble - Repairable Vehicles.com Tri State Late Models Dirt Late Models: Tri-State Late Models Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Dan Mackenthun (Stock Cars) | 5th | - | - | 22nd (DNF) |
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| 10/12/2021 | Batesville Motor Speedway - Locust Grove, AR World IMCA Stock Car Championship Practice IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | - | - | - | - |
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| 10/13/2021 | Batesville Motor Speedway - Locust Grove, AR World IMCA Stock Car Championship IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 2nd | - | - | 15th |
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| 10/14/2021 | Batesville Motor Speedway - Locust Grove, AR World IMCA Stock Car Championship IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 3rd | - | 19th | - |
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| 10/15/2021 | Batesville Motor Speedway - Locust Grove, AR World IMCA Stock Car Championship IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | 2nd | - | - | 20th |
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| 10/16/2021 | Batesville Motor Speedway - Locust Grove, AR World IMCA Stock Car Championship IMCA Stock Car | Results | | Dan Mackenthun (IMCA Stock Car) | - | - | 12th | - |
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