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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 | | Brian Sullivan (B Modifieds) | 5th | - | - | 15th (DNF) |
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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 | | Brian Sullivan (B Modifieds) | 4th | - | - | 13th (DNF) |
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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 | | Brian Sullivan (B Modifieds) | 1st | - | - | 1st |
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| 5/22/2021 | Shelby County Speedway - Harlan, IA Coca-Cola night Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Brian Sullivan (B Modifieds) | 5th | - | - | 14th (DNF) |
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| 5/29/2021 | Shelby County Speedway - Harlan, IA Eagles Landing presents Military and First Responders Night Hobby Stocks, Stock Cars, B Modifieds, Dirt Late Models, Sport Compact | Results | | Brian Sullivan (B Modifieds) | 5th | - | - | 10th |
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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 | | Brian Sullivan (B Modifieds) | 6th | - | - | 6th |
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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 | | Brian Sullivan (B Modifieds) | 5th | - | - | 6th |
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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 | | Brian Sullivan (B Modifieds) | 7th | - | - | 7th |
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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 | | Brian Sullivan (B Modifieds) | 6th | - | - | 6th |
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| 8/14/2021 | Shelby County Speedway - Harlan, IA FinishLine / Let's Get Back to School w/ Kids Bike Races Hobby Stocks, Stock Cars, A Modifieds, B Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Sport Compact | Results | | Brian Sullivan (B Modifieds) | 6th | - | - | 6th |
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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 | | Brian Sullivan (B Modifieds) | 2nd | - | - | 18th (DNF) |
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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 | | Brian Sullivan (B Modifieds) | 4th | - | 3rd | 16th |
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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 | | Brian Sullivan (B Modifieds) | 9th | - | - | - |
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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 | | Brian Sullivan (B Modifieds) | - | - | 9th | - |
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