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| 6/12/2020 | Marshalltown Speedway - Marshalltown, IA RBF Electric Night $400.00 to win IMCA Hobby Stock Feature Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Preston Merical (IMCA Hobby Stock) | 7th (DNF) | - | 1st | 16th |
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| 6/26/2020 | Marshalltown Speedway - Marshalltown, IA RBF Electric Make Up Features Plus Full Weekly Show Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Preston Merical (IMCA Hobby Stock) | 8th (DNF) | - | 6th | - |
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| 7/17/2020 | Marshalltown Speedway - Marshalltown, IA Balmer Racing Night at the Races $1,000.00 to win IMCA Stock Car Feature Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Preston Merical (IMCA Hobby Stock) | 8th | - | 6th | - |
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| 8/21/2020 | Marshalltown Speedway - Marshalltown, IA KMJ Performance FREE Grandstand plus Speed Shift TV Night at the Races Plus North Iowa Vintage Cars Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Preston Merical (IMCA Hobby Stock) | 10th | - | DNS | - |
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| 9/4/2020 | Marshalltown Speedway - Marshalltown, IA Safelite Auto Glass Showdown at MoTown IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Preston Merical (IMCA Hobby Stock) | 8th (DNF) | - | - | DNS |
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