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| 4/26/2020 | Interstate Speedway (SD) - Jefferson, SD Casey's General Store Presents IMCA Weekly Racing Series Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact, IMCA Modified | Results | | Gregg Hamman (Limited Sport Mod) | 4th | - | - | 9th |
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| 5/10/2020 | Interstate Speedway (SD) - Jefferson, SD Spring Thaw IMCA w/ Tri State Late Models Dirt Late Models: Tri-State Late Models Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 5th | - | - | 7th |
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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 | | Gregg Hamman (IMCA Northern SportMod) | 6th | - | 3rd | 19th |
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| 5/17/2020 | Interstate Speedway (SD) - Jefferson, SD Professional Concrete Presents Sprint Series Of Nebraska Racesaver Sprints plus Weekly Racing Series 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 7th | - | 6th | - |
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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 | | Gregg Hamman (IMCA Northern SportMod) | 5th | - | 8th | - |
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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 | | Gregg Hamman (IMCA Northern SportMod) | 7th | - | - | 20th (DNF) | | Gregg Hamman (IMCA Hobby Stock) | - | - | - | - |
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| 6/7/2020 | Interstate Speedway (SD) - Jefferson, SD Tom & Carol Reed Present IMCA Weekly Racing Series Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 6th | - | - | 14th |
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| 6/14/2020 | Interstate Speedway (SD) - Jefferson, SD Ideal Wheels Presents 305 Racesaver Sprints IMCA Weekly Racing Series 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 5th | - | - | 8th |
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| 6/28/2020 | Interstate Speedway (SD) - Jefferson, SD J&J Fittings presents Midwest Madness Mod Tour plus weekly Racing IMCA Modified: Midwest Madness Tour Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Gregg Hamman (Limited Sport Mod) | 8th (DNF) | - | - | 20th |
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| 7/5/2020 | Interstate Speedway (SD) - Jefferson, SD Coney's Used Cars presents Tri State Late Modesl Plus IMCA Weekly Racing Dirt Late Models: Tri-State Late Models Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 6th | - | - | 6th |
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| 7/10/2020 | Murray County Speedway - Slayton, MN Brycen Johnson Memorial Sport Mod Special, Plus IMCA Classes Sponsored by Pizza Ranch of Slayton Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Gregg Hamman (B Modifieds) | 6th | - | 8th | - |
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| 8/16/2020 | Interstate Speedway (SD) - Jefferson, SD Racers for Autism Weekly Racing Series IMCA Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 6th | - | - | DNS |
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| 8/23/2020 | Interstate Speedway (SD) - Jefferson, SD Contractor Supply presents IMCA Weekly Racing Series Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 3rd | - | - | 3rd |
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| 8/30/2020 | Interstate Speedway (SD) - Jefferson, SD Cookies Food Products presents IMCA Weekly Racing Vintage Full Body Stock Cars: Midwest Classic Stock Car Association Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 1st | - | - | 2nd |
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| 9/7/2020 | Boone Speedway - Boone, IA 2020 IMCA Speedway Motors Super Nationals Fueled by Casey’s Vintage Modifieds, Generic 1, IMCA Late Models, IMCA Northern SportMod, IMCA Hobby Stock | Results | | Gregg Hamman (IMCA Northern SportMod) | 6th | - | - | - |
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| 9/8/2020 | Boone Speedway - Boone, IA 2020 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact | Results | | Gregg Hamman (IMCA Northern SportMod) | 4th | - | - | - |
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| 9/20/2020 | Interstate Speedway (SD) - Jefferson, SD Fleet Farm presents Season Championship Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 1st | - | - | 10th |
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| 10/2/2020 | Interstate Speedway (SD) - Jefferson, SD 2nd Annual South Dakota Nationals Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | 6th (DNF) | - | - | 7th |
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| 10/3/2020 | Interstate Speedway (SD) - Jefferson, SD South Dakota Nationals Championship 2020 Hobby Stocks, Stock Cars, A Modifieds, Limited Sport Mod, Sport Compact | Results | | Gregg Hamman (Limited Sport Mod) | - | - | - | 6th |
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| 10/10/2020 | Murray County Speedway - Slayton, MN Hub City Rumble Factory Stocks, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Sport Compact | Results | | Gregg Hamman (B Modifieds) | 6th | - | 11th (DNF) | - |
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