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| 4/24/2021 | Shelby County Speedway - Harlan, IA Spring Fling Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact, IMCA Mod Lite | Results | | Hayden Hillgartner (B Modifieds) | 5th | - | - | 11th |
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| 5/1/2021 | Shelby County Speedway - Harlan, IA May Day Mayhem Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 5th | - | - | 10th |
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| 5/15/2021 | Shelby County Speedway - Harlan, IA Pizza Ranch presents The James Buwalda Memorial w/ Kids Candy Dash Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Vintage Full Body Stock Cars, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 6th | - | - | 11th |
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| 6/5/2021 | Shelby County Speedway - Harlan, IA Race for Cancer Awareness Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 5th | - | - | 14th (DNF) |
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| 6/12/2021 | Shelby County Speedway - Harlan, IA Shelby County Speedway - WEST Dirt Super Late Models: SLMR Late Model Series Hobby Stocks, Stock Cars, B Modifieds, Non-Winged Sprints | Results | | Hayden Hillgartner (B Modifieds) | 4th | - | - | 11th (DNF) |
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| 6/18/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Stock Cars 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 9th (DNF) | - | - | 5th |
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| 6/19/2021 | Shelby County Speedway - Harlan, IA The BuckSnort presents Father's Day Fleet Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 1st | - | - | 4th |
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| 6/25/2021 | Crawford County Speedway - Denison, IA $1,500 to win at Crawford County Speedway 305 Sprints - Winged, Dirt Super Late Models, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Hayden Hillgartner (B Modifieds) | 8th | - | - | 4th |
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| 7/2/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$600 to win Hobby Stock and $400 to win Sport Compact 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Hayden Hillgartner (B Modifieds) | 6th | - | - | 10th |
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| 7/9/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Stock Cars 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Hayden Hillgartner (B Modifieds) | 5th | - | - | 12th (DNF) |
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| 7/13/2021 | Shelby County Speedway - Harlan, IA Dale Swanson Memorial Hobby Stocks, Stock Cars, A Modifieds, B Modifieds | Results | | Hayden Hillgartner (B Modifieds) | 3rd | - | - | 24th (DNF) |
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| 7/17/2021 | Shelby County Speedway - Harlan, IA Shelby County Fair Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 3rd | - | - | 7th |
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| 8/6/2021 | Crawford County Speedway - Denison, IA Regular Night All Classes-$1000 to win Sprint Cars 305 Sprints - Winged, Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Hornets | Results | | Hayden Hillgartner (B Modifieds) | 2nd | - | - | 5th |
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| 8/8/2021 | Interstate Speedway (SD) - Jefferson, SD IMCA Weekly Racing IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Hayden Hillgartner (IMCA Northern SportMod) | 8th (DNF) | - | - | 9th |
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| 8/21/2021 | Shelby County Speedway - Harlan, IA IMCA Sunoco Late Model & Season Smack Down Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Hayden Hillgartner (Stock Cars) | 6th | - | - | 15th (DNF) | | Hayden Hillgartner (B Modifieds) | 3rd | - | - | 8th |
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| 9/5/2021 | Boone Speedway - Boone, IA Wild Rose Casino Prelude to the Super Nationals IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact, Pro Dwarf, IMCA Mod Lite | Results | | Hayden Hillgartner (IMCA Northern SportMod) | 6th | - | 8th | - |
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| 9/6/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Late Models, IMCA Northern SportMod, IMCA Hobby Stock | Results | | Hayden Hillgartner (IMCA Northern SportMod) | 6th | - | - | - |
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| 9/7/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s Vintage Modifieds, Generic 1, IMCA Northern SportMod, IMCA Hobby Stock, IMCA Sport Compact | Results | | Hayden Hillgartner (IMCA Northern SportMod) | 7th | - | 6th | - |
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| 9/24/2021 | Shelby County Speedway - Harlan, IA Tiny Lund Night 1 / Battle of the Compacts on Hwy 59 Hobby Stocks, Stock Cars, B Modifieds, Dirt Late Models, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 3rd | - | - | 13th |
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| 9/25/2021 | Shelby County Speedway - Harlan, IA Tiny Lund Night 2 / Dirt Truck Racing Assoc. Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Dirt Pro Trucks, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 2nd | - | - | 14th |
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| 10/7/2021 | I-80 Speedway - Greenwood, NE Speedway Motors Night at the Races Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact, IMCA Modified | Results | | Hayden Hillgartner (B Modifieds) | 5th | - | 4th | - |
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| 10/8/2021 | I-80 Speedway - Greenwood, NE Cornhusker Classic Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact, IMCA Modified | Results | | Hayden Hillgartner (B Modifieds) | 3rd | - | - | - |
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| 10/9/2021 | I-80 Speedway - Greenwood, NE Cornhusker Classic Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact, IMCA Modified | Results | | Hayden Hillgartner (B Modifieds) | - | - | 4th | - |
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| 11/6/2021 | CJ Speedway - Columbus Junction, IA 5th Annual Turkey Dash IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Hayden Hillgartner (IMCA Northern SportMod) | 7th | - | 3rd | 11th |
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| 11/20/2021 | Lee County Speedway - Donnellson, IA Casey's and Midwest Performance & Power Shiverfest Stock Cars, Dirt Mini Trucks, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Sport Compact | Results | | Hayden Hillgartner (B Modifieds) | 4th | - | - | 8th |
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