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| 4/2/2021 | Hamilton County Speedway - Webster City, IA USMTS Spring Challenge A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars | Results | | Jason Bass (USRA B-Mods) | 2nd | - | - | 9th |
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| 4/17/2021 | Hamilton County Speedway - Webster City, IA Malvern Bank $3,000-to-Win Late Models Dirt Super Late Models: SLMR Late Model Series USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 3rd | - | - | 10th |
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| 4/23/2021 | Marshalltown Speedway - Marshalltown, IA Sleeping Angel's Foundation Fundraiser Night Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Jason Bass (IMCA Northern SportMod) | 1st | - | - | 4th |
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| 4/24/2021 | Hamilton County Speedway - Webster City, IA Modified Madness $2,000-to-Win Mods A Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 3rd | - | - | 10th |
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| 5/7/2021 | Sports Park Raceway - Fort Dodge, IA Season Opener USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 6th (DNF) | - | - | 5th |
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| 5/14/2021 | Sports Park Raceway - Fort Dodge, IA Summit USRA Weekly Racing Series USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 4th | - | - | 2nd |
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| 5/22/2021 | Hamilton County Speedway - Webster City, IA Bob Flaws Memorial + Stock Car Challenge $1,600-to-Win USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 3rd | - | - | 5th |
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| 6/2/2021 | Buena Vista Raceway - Alta, IA Opening Night Hobby Stocks, Stock Cars, B Modifieds, Sport Compact, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jason Bass (IMCA Modified) | 7th | - | - | 12th | | Jason Bass (IMCA Northern SportMod) | - | - | - | - |
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| 6/4/2021 | Sports Park Raceway - Fort Dodge, IA Summit USRA Weekly Racing Series USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 1st | - | - | 3rd |
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| 6/11/2021 | Sports Park Raceway - Fort Dodge, IA Summit USRA Weekly Racing Series USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 2nd | - | - | 3rd |
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| 6/12/2021 | Hamilton County Speedway - Webster City, IA Karl Chevrolet Fan Appreciation Night + Kid's Night Dirt Super Late Models, Super Truck, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 1st | - | - | 8th |
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| 6/18/2021 | Sports Park Raceway - Fort Dodge, IA Summit USRA Weekly Racing Series USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 3rd | - | - | 3rd |
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| 7/2/2021 | Sports Park Raceway - Fort Dodge, IA 4th of July Spectacular USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 2nd | - | - | 5th | | Jason Bass (USRA Modifieds) | DNS | - | - | 6th |
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| 7/10/2021 | Deer Creek Speedway - Spring Valley, MN Points Race USRA B-Mods, USRA Modifieds, WISSOTA Midwest Mods, WISSOTA Street Stock, WISSOTA Super Stock | Results | | Jason Bass (USRA B-Mods) | 5th | - | 1st | 18th |
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| 7/13/2021 | Shelby County Speedway - Harlan, IA Dale Swanson Memorial Hobby Stocks, Stock Cars, A Modifieds, B Modifieds | Results | | Jason Bass (B Modifieds) | 3rd | - | - | 1st |
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| 7/16/2021 | Sports Park Raceway - Fort Dodge, IA Summit USRA Weekly Racing Series B Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 3rd | - | - | 5th | | Jason Bass (USRA Modifieds) | 5th | - | - | 9th |
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| 7/17/2021 | Hamilton County Speedway - Webster City, IA Casey's Salute The Troops + HCPOA Night Dirt Super Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 6th | - | - | 6th |
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| 7/21/2021 | Hamilton County Speedway - Webster City, IA Wildcard Wednesday Presented by Peoples Credit Union Dirt Super Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 3rd | - | - | 13th (DNF) |
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| 7/24/2021 | Hamilton County Speedway - Webster City, IA Kids Night At The Fair Presented by Good Life RV Dirt Super Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 2nd | - | - | 10th |
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| 7/31/2021 | Hamilton County Speedway - Webster City, IA USRA Weekly Racing Presented by D&B Agro USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 5th | - | - | 6th |
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| 8/6/2021 | Fayette County Speedway - West Union, IA Weekly Points Race ~ Iowa Donor Network Race 600cc Modifieds, USRA B-Mods, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 5th | - | - | 10th |
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| 8/21/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #19 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Jason Bass (IMCA Northern SportMod) | 3rd | - | - | 16th |
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| 8/27/2021 | Sports Park Raceway - Fort Dodge, IA Season Championship Night and Tuff Trucks Super Truck, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 1st | - | - | 3rd |
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| 8/28/2021 | Hamilton County Speedway - Webster City, IA Karl Chevrolet Driver Appreciation Night A Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 1st | - | - | 22nd (DNF) |
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| 9/4/2021 | 300 Raceway - Farley, IA 300 Raceway - The Yankee - EAST/WEST Dirt Super Late Models: SLMR Late Model Series Stock Cars, A Modifieds, B Modifieds | Results | | Jason Bass (B Modifieds) | 4th | - | 2nd | 23rd |
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| 9/18/2021 | Marshalltown Speedway - Marshalltown, IA 15th Annual World Nationals IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Jason Bass (IMCA Northern SportMod) | 3rd | - | - | 12th |
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| 10/6/2021 | Lucas Oil Speedway - Wheatland, MO Practice Night USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | - | - | - | - |
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| 10/7/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks | Results | | Jason Bass (USRA B-Mods) | 4th | - | 3rd | 20th (DNF) |
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| 10/8/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 1st | - | - | - |
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| 10/9/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | - | - | 4th | - |
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| 10/16/2021 | Mason City Motor Speedway - Mason City, IA Five Star Classic 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 2nd | - | - | 5th |
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| 10/17/2021 | Mason City Motor Speedway - Mason City, IA Five Star Classic 600cc Modifieds, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 2nd | - | - | 9th |
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| 10/23/2021 | Hamilton County Speedway - Webster City, IA Fall Futurity Night #2 Dirt Super Late Models, USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Stock Cars, USRA Tuners | Results | | Jason Bass (USRA B-Mods) | 1st | - | - | 13th |
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