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| 4/18/2021 | Benton County Speedway - Vinton, IA Weekly IMCA Racing Season Opener IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 8th | - | - | 16th |
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| 4/23/2021 | Marshalltown Speedway - Marshalltown, IA Sleeping Angel's Foundation Fundraiser Night Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Curt Hilmer (IMCA Northern SportMod) | 7th (DNF) | - | 10th | - |
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| 4/30/2021 | Marshalltown Speedway - Marshalltown, IA LOCAL UAW 893 Cliff Chambers Memorial Dwarf, Dirt Pro Trucks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Curt Hilmer (IMCA Northern SportMod) | 3rd | - | - | 8th |
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| 5/2/2021 | Benton County Speedway - Vinton, IA Weekly IMCA Racing Plus Late Models Dirt Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 7th | - | - | 21st |
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| 5/9/2021 | Benton County Speedway - Vinton, IA Weekly IMCA Racing Plus Micro Sprints Winged Outlaw, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 3rd | - | - | 12th |
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| 5/14/2021 | Marshalltown Speedway - Marshalltown, IA Casey's Salute to Military / Haverhill Social Club Night Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | - | - | - | - |
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| 5/23/2021 | Benton County Speedway - Vinton, IA Weekly IMCA Racing Plus A.I.R.S Cars Vintage Full Body Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 8th | - | - | DNS |
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| 5/30/2021 | Benton County Speedway - Vinton, IA Benton County Speedway - EAST Dirt Super Late Models: SLMR Late Model Series Dirt Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 7th | - | - | 23rd (DNF) |
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| 6/4/2021 | Marshalltown Speedway - Marshalltown, IA Old Timers Lounge Night Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 6th | - | 2nd | 19th (DNF) |
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| 6/6/2021 | Benton County Speedway - Vinton, IA IMCA Weekly Racing Plus Legends Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 1st | - | - | 7th |
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| 6/13/2021 | Benton County Speedway - Vinton, IA Candy Dash for the Guinness Book of World Records Plus IMCA Weekly Racing IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 6th | - | - | 17th |
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| 6/19/2021 | Independence Motor Speedway - Independence, IA Crawford Farms Hall of Fame Night DIRTcar Sport Compact, Hobby Stocks, Stock Cars, A Modifieds, Stock Non-Wing, B Modifieds, Dirt Late Models | Results | | Curt Hilmer (B Modifieds) | 7th | - | - | 13th |
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| 7/4/2021 | Benton County Speedway - Vinton, IA Sprint Invaders - Benton County Speedway 360 Sprints - Winged: Sprint Invaders Winged Outlaw, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 5th | - | - | 17th (DNF) |
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| 7/11/2021 | Benton County Speedway - Vinton, IA Urbana 5 - Weekly IMCA Racing Plus Legends Cars Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 4th | - | 5th | - |
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| 7/18/2021 | Benton County Speedway - Vinton, IA Weekly Racing Plus Late Models Dirt Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 9th | - | - | 14th |
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| 7/25/2021 | Benton County Speedway - Vinton, IA Weekly IMCA Racing Plus Micro Sprints IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 8th | - | - | 8th |
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| 8/6/2021 | Marshalltown Speedway - Marshalltown, IA Shawn's Custom Hay Grinding Night Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 3rd | - | - | 11th |
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| 8/13/2021 | Marshalltown Speedway - Marshalltown, IA BHE Night $1,000.00 to Win IMCA Norther SportMods Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Curt Hilmer (IMCA Northern SportMod) | 4th | - | - | 23rd |
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| 10/1/2021 | Cedar County Raceway - Tipton, IA Hoker Trucking Darkside Fall Bash 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Curt Hilmer (IMCA Northern SportMod) | 6th | - | 6th | - |
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