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| 5/16/2020 | Boone Speedway - Boone, IA Season Opener 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 3rd | - | - | 24th (DNF) |
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| 5/23/2020 | Boone Speedway - Boone, IA Saturday Night Series #2 - Mod Lite Mania Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 8th | - | 3rd | - |
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| 5/30/2020 | Boone Speedway - Boone, IA Saturday Night Series - Weekly Points Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 8th (DNF) | - | DNS | - |
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| 6/5/2020 | Marshalltown Speedway - Marshalltown, IA New and Tenetive Season Opener Old Timers Lounge Night Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 3rd | - | - | 7th |
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| 6/6/2020 | Boone Speedway - Boone, IA Saturday Night Series #4 Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Lawn Mower Supermodified, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 9th | - | 3rd | 21st |
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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 | | William Klosterman (IMCA Hobby Stock) | 3rd | - | - | 13th |
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| 6/13/2020 | Boone Speedway - Boone, IA Saturday Night Series #5 - Excel Floor Covering Modified King of the Hill 305 Sprints - Winged, Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Lawn Mower Supermodified, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 5th | - | - | 18th |
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| 6/20/2020 | Boone Speedway - Boone, IA Saturday Night Series #6 Hobby Stocks, Dirt Mini Trucks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Lawn Mower Supermodified, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 4th | - | - | 26th (DNF) |
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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 | | William Klosterman (IMCA Hobby Stock) | 4th | - | - | 19th (DNF) |
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| 6/27/2020 | Boone Speedway - Boone, IA Rage Chassis Super Saturday w/ Karl Chevrolet - $1000 to win Modifieds, $750 to Win Sport Mods Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Lawn Mower Supermodified, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 2nd | - | - | 7th |
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| 7/3/2020 | Marshalltown Speedway - Marshalltown, IA Wolf Seeds Night at the Races Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 4th | - | - | 23rd (DNF) |
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| 7/10/2020 | Marshalltown Speedway - Marshalltown, IA Williamson Repair Night at the Races Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 5th | - | - | 8th |
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| 7/11/2020 | Boone Speedway - Boone, IA Saturday Night Series #9 - Excel Floor Covering Stock Car King of the Hill Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Lawn Mower Supermodified, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Rain Out |
| 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 | | William Klosterman (IMCA Hobby Stock) | 3rd | - | - | 7th |
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| 7/18/2020 | Boone Speedway - Boone, IA Saturday Night Series #10 - Outlaw Mini Mods Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, Dwarf, 600cc Modifieds, Lawn Mower Supermodified, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 9th (DNF) | - | 2nd | 16th |
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| 7/24/2020 | Marshalltown Speedway - Marshalltown, IA Casey's & Rumors Bar and Grille Salute to Mashalltown Law Enforcement Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 4th | - | - | 4th |
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| 7/31/2020 | Marshalltown Speedway - Marshalltown, IA Triple E Insulator Night at the Races Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 3rd | - | - | 21st (DNF) |
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| 8/7/2020 | Marshalltown Speedway - Marshalltown, IA Shawn's Custom Hay Grinding Night at the Races IMCA Late Model Season Championship Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 2nd | - | - | 12th |
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| 8/15/2020 | Boone Speedway - Boone, IA Saturday Night Series #14 - IMCA Sport Compact Shakedown Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | William Klosterman (IMCA Hobby Stock) | 7th | - | 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 | | William Klosterman (IMCA Hobby Stock) | 3rd | - | - | 5th |
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| 8/29/2020 | Boone Speedway - Boone, IA Saturday Night Series #16 - Season Championship & Banquet Hobby Stocks, A Modifieds, B Modifieds, Street Stocks, 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | William Klosterman (IMCA Hobby Stock) | 3rd | - | - | 5th |
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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 | | William Klosterman (IMCA Hobby Stock) | 5th | - | - | 10th |
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