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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 | | Arianna Prothman (Sport Compact) | 5th | - | - | 7th |
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| 4/30/2021 | Hancock County Speedway - Britt, IA Weekly Racing - Point Invert Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Arianna Prothman (Sport Compact) | 5th | - | - | 6th |
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| 5/6/2021 | Kossuth County Speedway - Algona, IA Season Opener B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 3rd | - | - | 6th |
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| 5/7/2021 | Hancock County Speedway - Britt, IA Midwest Insulation / Central States Agency Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, 600cc Modifieds, Sport Compact | Results | | Arianna Prothman (Sport Compact) | 6th | - | - | 5th (DNF) |
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| 5/13/2021 | Kossuth County Speedway - Algona, IA Weekly IMCA Racing B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 5th | - | - | 4th |
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| 5/14/2021 | Hancock County Speedway - Britt, IA Pritchard's Family Auto Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Arianna Prothman (Sport Compact) | 7th | - | - | 5th |
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| 6/3/2021 | Kossuth County Speedway - Algona, IA Vintage Racers & Weekly IMCA Racing B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 7th | - | - | 7th |
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| 6/10/2021 | Kossuth County Speedway - Algona, IA Weekly IMCA Racing B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 4th | - | - | 6th |
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| 6/11/2021 | Hancock County Speedway - Britt, IA Trulson Auto Parts / Hillenga Seeds Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, 600cc Modifieds, Sport Compact | Results | | Arianna Prothman (Sport Compact) | 5th | - | - | 5th (DNF) |
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| 6/17/2021 | Kossuth County Speedway - Algona, IA Outlaw Mini Mod & Weekly IMC Racing B Modifieds, Street Stocks, 600cc Modifieds, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 4th | - | - | 7th |
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| 6/22/2021 | Hancock County Speedway - Britt, IA MAXYIELD SPORT MOD NATIONALS $2,500 to WIN Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Arianna Prothman (Sport Compact) | 4th | - | - | 8th |
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| 6/24/2021 | Kossuth County Speedway - Algona, IA Wyffels Hybrids Sport Mod Special B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 5th | - | - | 10th |
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| 7/1/2021 | Kossuth County Speedway - Algona, IA Weekly IMCA Racing B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 8th | - | - | 9th (DNF) |
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| 7/8/2021 | Kossuth County Speedway - Algona, IA The Bobby Thilges Sport Compact Bumble Bee Nationals B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 8th | - | 4th | 18th |
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| 7/15/2021 | Kossuth County Speedway - Algona, IA Beck's Hybrids Stock Car Special B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 4th | - | - | 8th |
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| 7/16/2021 | Hancock County Speedway - Britt, IA $1000 To Win Stock Cars Sponsored by H&K Plumbing and Sawyer Contracting LLC Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Arianna Prothman (Sport Compact) | 4th | - | - | 5th |
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| 7/22/2021 | Kossuth County Speedway - Algona, IA Jess Weishaar Memorial & Mid Summer Hobby Stock Shoot Out B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 6th | - | - | 8th |
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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 | | Arianna Prothman (Sport Compact) | 4th | - | - | 4th |
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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 | | Arianna Prothman (IMCA Sport Compact) | 4th | - | - | 8th |
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| 8/5/2021 | Kossuth County Speedway - Algona, IA Hovinga & Harken Memorial Fair Special B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 6th | - | - | 7th |
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| 8/6/2021 | Hancock County Speedway - Britt, IA Annual Night of 1,000 Stars - $3,000 to WIN Modifieds Sponsored BY JAKS PUPPIES Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact, IMCA Modified | Results | | Arianna Prothman (Sport Compact) | 6th | - | - | 3rd |
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| 8/12/2021 | Kossuth County Speedway - Algona, IA Vintage Racers B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 4th | - | - | 6th |
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| 8/19/2021 | Kossuth County Speedway - Algona, IA Season Championship B Modifieds, Street Stocks, Enduro, IMCA Modified, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 4th | - | - | 6th |
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| 9/15/2021 | Clay County Fair Speedway - Spencer, IA The IMCA Blue Ribbon Showdown (Fair Race) IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Arianna Prothman (IMCA Sport Compact) | 7th | - | - | 9th |
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