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| 3/27/2021 | Tucson Speedway - Tucson, AZ Pedal to The Metal Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds | Results | | Brian O'Brien (Asphalt Stock Cars) | 1st | - | - | 12th |
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| 4/24/2021 | Tucson Speedway - Tucson, AZ Fan Appreciation Night Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | 4th | - | - | 8th |
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| 5/22/2021 | Tucson Speedway - Tucson, AZ Memorial Day Races Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | 3rd | - | - | 4th |
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| 6/19/2021 | Tucson Speedway - Tucson, AZ Freaky Fast Races- Father's Day Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | 2nd | - | - | 3rd |
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| 7/17/2021 | Tucson Speedway - Tucson, AZ Summer Sizzle Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | 3rd | - | - | 1st |
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| 8/14/2021 | Tucson Speedway - Tucson, AZ Killer Bees Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | - | - | - | - |
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| 8/28/2021 | Tucson Speedway - Tucson, AZ Silver Bullet Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | - | - | - | - |
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| 9/18/2021 | Tucson Speedway - Tucson, AZ Roadrunner Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | - | - | - | 6th |
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| 10/2/2021 | Tucson Speedway - Tucson, AZ Bad to The Bone Races Asphalt Late Models, Asphalt Super Late Models, Bandits, Outlaws, Semi-Pro Legends, Vintage Modifieds, Asphalt Street Stocks, Senior Micros | Results | | Brian O'Brien (Asphalt Street Stocks) | 5th | - | - | 4th |
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| 10/16/2021 | Tucson Speedway - Tucson, AZ Hank Arnold Memorial Races Asphalt Pro Trucks, Asphalt 4-Cylinders, Asphalt Stock Cars, Asphalt Big Block Modifieds, Pavement Midgets | Results | | Brian O'Brien (Asphalt Stock Cars) | 6th | - | - | 4th |
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