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| 4/23/2023 | Interstate Speedway (SD) - Jefferson, SD Interstate Speedway Grand Opening / 53rd Annual IMCA Weekly Racing Season Opener B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 3rd | - | - | 9th |
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| 4/27/2023 | Park Jefferson International Speedway - Jefferson, SD Test & Tune B Modifieds, Dirt Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | - | - | - | - |
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| 4/29/2023 | Park Jefferson International Speedway - Jefferson, SD Opening Night B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 3rd | - | - | 13th (DNF) |
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| 4/30/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing plus IMCA Race Saver Sprint Cars B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 4th | - | - | 3rd |
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| 5/12/2023 | Crawford County Speedway - Denison, IA Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, IMCA RaceSaver Sprint Car | Results | | Jim Thies (A Modifieds) | 4th | - | - | 1st |
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| 5/20/2023 | Park Jefferson International Speedway - Jefferson, SD Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 1st | - | - | 14th (DNF) |
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| 5/21/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing plus Tri-State Late Models Dirt Late Models: Tri-State Late Models Dirt Super Late Models, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 5th | - | - | 7th |
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| 5/26/2023 | Crawford County Speedway - Denison, IA Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Vintage Full Body Stock Cars, Hornets, IMCA RaceSaver Sprint Car | Results | | Jim Thies (A Modifieds) | 5th | - | - | 8th |
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| 5/27/2023 | Park Jefferson International Speedway - Jefferson, SD Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 1st | - | - | 4th |
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| 5/28/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 1st | - | - | 1st |
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| 5/29/2023 | Park Jefferson International Speedway - Jefferson, SD $5,000 to win RTI Nationals (Monday) Memorial Day A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 2nd | - | - | 5th |
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| 5/30/2023 | Park Jefferson International Speedway - Jefferson, SD $5,000 to win RTI Nationals (Tuesday) A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 4th | - | - | 19th (DNF) |
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| 6/3/2023 | Park Jefferson International Speedway - Jefferson, SD Weekly Racing IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 1st | - | - | 2nd |
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| 6/4/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 6th (DNF) | - | - | 7th |
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| 6/9/2023 | Crawford County Speedway - Denison, IA Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, IMCA RaceSaver Sprint Car | Results | | Jim Thies (A Modifieds) | 4th | - | - | 5th |
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| 6/18/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing plus GOTRA Vintage Races B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 3rd | - | - | 6th |
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| 6/22/2023 | Park Jefferson International Speedway - Jefferson, SD Practice IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | - | - | - | - |
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| 6/23/2023 | Crawford County Speedway - Denison, IA Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Vintage Full Body Stock Cars, Hornets, IMCA RaceSaver Sprint Car | Results | | Jim Thies (A Modifieds) | 1st | - | - | 4th |
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| 6/27/2023 | Park Jefferson International Speedway - Jefferson, SD Midwest Madness Tour (Tuesday) IMCA Modified: Midwest Madness Tour A Modifieds, B Modifieds, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 1st | - | - | 20th (DNF) |
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| 7/2/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing Non-Winged Sprints: Western Iowa Non-Wing Sprints - WINS B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 2nd | - | - | 5th |
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| 7/8/2023 | Park Jefferson International Speedway - Jefferson, SD Weekly Racing Dirt Late Models: Tri-State Late Models Dirt Super Late Models, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 4th | - | - | 6th |
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| 7/9/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 5th | - | - | 3rd |
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| 7/15/2023 | Park Jefferson International Speedway - Jefferson, SD Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 5th | - | - | 3rd |
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| 7/16/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing plus IMCA Race Saver Sprint Cars B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 4th | - | - | 5th |
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| 7/21/2023 | Crawford County Speedway - Denison, IA Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Hornets, IMCA RaceSaver Sprint Car | Results | | Jim Thies (A Modifieds) | 1st | - | - | 2nd |
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| 7/23/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing and LMSS & Micros Winged A-Class, B Modifieds, Street Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 3rd | - | - | 5th |
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| 7/24/2023 | Park Jefferson International Speedway - Jefferson, SD Dave Riley Memorial Race $2556 to win Hobby Stock, $1056 Sp Mod,$1056 Stock car,$1056 Mods, $556 Com A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 1st | - | - | 2nd |
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| 7/28/2023 | Crawford County Speedway - Denison, IA Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Hornets, IMCA RaceSaver Sprint Car | Results | | Jim Thies (A Modifieds) | 5th | - | - | 3rd |
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| 7/30/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing plus Midwest Classic Stock Cars B Modifieds, Vintage Full Body Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 2nd | - | - | 3rd |
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| 8/3/2023 | Park Jefferson International Speedway - Jefferson, SD Practice 7pm 360 Sprints - Winged, Dirt Super Late Models, A Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | - | - | - | - |
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| 8/12/2023 | Park Jefferson International Speedway - Jefferson, SD Late Models & $1000 win stock cars Dirt Late Models: Tri-State Late Models Dirt Super Late Models, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 1st | - | - | 8th |
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| 8/20/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 4th | - | - | 7th |
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| 8/26/2023 | Park Jefferson International Speedway - Jefferson, SD Season Championship B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 4th | - | - | 5th |
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| 8/27/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 3rd | - | - | 6th |
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| 9/2/2023 | Boone Speedway - Boone, IA Wild Rose Casino Double Down Prelude to the Super Nationals delivered by NAPA A Modifieds, IMCA Modified, IMCA Stock Car, IMCA Sport Compact, IMCA Mod Lite | Results | | Jim Thies (IMCA Modified) | 4th | - | 4th | - |
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| 9/6/2023 | Boone Speedway - Boone, IA 2023 IMCA Speedway Motors Super Nationals Fueled by Casey's Vintage Full Body Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jim Thies (IMCA Modified) | 2nd | - | - | 15th |
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| 9/7/2023 | Boone Speedway - Boone, IA 2023 IMCA Speedway Motors Super Nationals Fueled by Casey's Sportsmans, Midwest Modifieds, IMCA Modified, IMCA Stock Car | Results | | Jim Thies (Midwest Modifieds) | 5th | - | - | - | | Jim Thies (IMCA Modified) | 6th | - | 12th | - |
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| 9/8/2023 | Boone Speedway - Boone, IA 2023 IMCA Speedway Motors Super Nationals Fueled by Casey's Generic 2, IMCA Modified, IMCA Stock Car | Results | | Jim Thies (IMCA Modified) | 5th | - | 6th | - |
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| 9/9/2023 | Boone Speedway - Boone, IA 2023 IMCA Speedway Motors Super Nationals Fueled by Casey's Midwest Modifieds, B Modifieds, Vintage Full Body Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jim Thies (IMCA Modified) | - | - | 4th | - |
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| 9/16/2023 | Park Jefferson International Speedway - Jefferson, SD Racing national points B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 6th (DNF) | - | - | 14th (DNF) |
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| 9/17/2023 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 8th (DNF) | - | - | 8th |
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| 9/24/2023 | Interstate Speedway (SD) - Jefferson, SD 53rd Annual Interstate Speedway Season Championships B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 3rd | - | - | 4th |
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| 10/6/2023 | Interstate Speedway (SD) - Jefferson, SD South Dakota Fall Nationals B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 5th | - | - | - |
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| 10/7/2023 | Interstate Speedway (SD) - Jefferson, SD South Dakota Fall Nationals B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | DNS | - | - | - |
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| 10/20/2023 | Park Jefferson International Speedway - Jefferson, SD Practice 360 Sprints - Winged, Dirt Super Late Models, A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA RaceSaver Sprint Car, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | - | - | - | - |
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| 10/21/2023 | Park Jefferson International Speedway - Jefferson, SD Charlie Clark Memorial $5022 to win! A Modifieds, B Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jim Thies (IMCA Modified) | 4th | - | - | 11th |
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