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| 4/2/2021 | Marshalltown Speedway - Marshalltown, IA 141 Speedway / Left Turn Lounge IMCA FrostBuster IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Chad Rigby (IMCA Hobby Stock) | 10th (DNF) | - | 9th | - |
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| 4/3/2021 | Boone Speedway - Boone, IA IMCA Frostbuster IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Chad Rigby (IMCA Hobby Stock) | 4th | - | - | 16th |
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| 4/10/2021 | Boone Speedway - Boone, IA Season Opener IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 4th | - | - | 12th |
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| 4/16/2021 | Marshalltown Speedway - Marshalltown, IA Hoker Trucking East Super Late Models Series Kevin "Sharp Shooter" Miller Lite 30 Dirt Super Late Models: SLMR Late Model Series Dwarf, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Chad Rigby (IMCA Hobby Stock) | 4th | - | - | 12th |
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| 4/17/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #2 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 1st | - | - | 1st |
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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 | | Chad Rigby (IMCA Hobby Stock) | 6th | - | - | 19th (DNF) |
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| 4/24/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #3 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 4th | - | - | 20th (DNF) |
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| 5/6/2021 | Marshalltown Speedway - Marshalltown, IA Dale DeFrance Memorial Thursday Night Thunder Dwarf, IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Chad Rigby (IMCA Hobby Stock) | 2nd | - | - | 17th (DNF) |
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| 7/3/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #12 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 2nd | - | - | 8th |
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| 7/17/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #14 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 2nd | - | - | 5th |
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| 7/21/2021 | Stuart Speedway - Stuart, IA Clint Walrod Memorial 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 9th (DNF) | - | - | 24th (DNF) |
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| 7/24/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #15 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 1st | - | - | 3rd |
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| 7/31/2021 | Boone Speedway - Boone, IA Salute to Veterans/Saturday Night Series Weekly #16 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 7th | - | 9th (DNF) | - |
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| 8/1/2021 | Dubuque Fairgrounds Speedway - Dubuque, IA Julien Dubuque Classic Fair Race Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, IMCA Late Models, Sport Compact, Dirt Mini Late Models | Results | | Chad Rigby (Hobby Stocks) | 1st | - | - | 2nd |
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| 8/7/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #17 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 7th | - | - | 14th |
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| 8/14/2021 | Boone Speedway - Boone, IA Saturday Night Series Weekly #18 IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 3rd | - | - | 18th |
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| 8/28/2021 | Boone Speedway - Boone, IA Season Championship IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Mod Lite | Results | | Chad Rigby (IMCA Hobby Stock) | 5th | - | - | 13th |
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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 | | Chad Rigby (IMCA Hobby Stock) | 2nd | - | - | 28th (DNF) |
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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 | | Chad Rigby (IMCA Hobby Stock) | 1st | - | - | 25th (DNF) |
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| 9/8/2021 | Boone Speedway - Boone, IA 2021 IMCA Speedway Motors Super Nationals Fueled by Casey’s IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Chad Rigby (IMCA Hobby Stock) | - | - | - | 20th (DNF) |
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| 9/30/2021 | Cedar County Raceway - Tipton, IA Hoker Trucking Darkside Fall Bash IMCA Late Models, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Chad Rigby (IMCA Hobby Stock) | 1st | - | - | 4th |
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| 10/1/2021 | Cedar County Raceway - Tipton, IA Hoker Trucking Darkside Fall Bash 600cc Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Chad Rigby (IMCA Hobby Stock) | 5th | - | - | 16th |
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| 10/2/2021 | Cedar County Raceway - Tipton, IA Hoker Trucking Darkside Fall Bash Street Stocks, Vintage Full Body Stock Cars, Super Stocks, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock | Results | | Chad Rigby (IMCA Hobby Stock) | 2nd | - | - | 16th |
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