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| 4/25/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #1 Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds | Results | | Randy Ainsworth (B Modifieds) | 3rd | - | - | 10th |
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| 4/30/2021 | Lakeside Speedway - Kansas City, KS Lakeside Speedway - WEST Dirt Super Late Models: SLMR Late Model Series Factory Stocks, Stock Cars, B Modifieds, Mod Lites | Results | | Randy Ainsworth (B Modifieds) | 7th (DNF) | - | - | 12th |
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| 5/1/2021 | Lucas Oil Speedway - Wheatland, MO Weekly Show #3 - $5 Night at the Races Presented by KY3 Dirt Late Models, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Randy Ainsworth (USRA B-Mods) | 4th | - | - | 24th (DNF) |
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| 5/7/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #3 Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds, Dirt Late Models | Results | | Randy Ainsworth (B Modifieds) | 1st | - | - | 6th |
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| 5/14/2021 | Lakeside Speedway - Kansas City, KS USMTS A Modifieds: USMTS - United States Modified Touring Series Midwest Modifieds, USRA B-Mods, USRA Stock Cars | Results | | Randy Ainsworth (USRA B-Mods) | 6th | - | - | 15th |
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| 6/4/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #5 Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds | Results | | Randy Ainsworth (B Modifieds) | 4th | - | - | 5th |
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| 6/5/2021 | I-35 Speedway - Winston, MO Rod End Supply Night at the Races With Midwest Lighting Sprints Hobby Stocks, Midwest Modifieds, Dirt Late Models, Vintage Full Body Stock Cars, Lightning Sprints, Sport Compact, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Randy Ainsworth (USRA B-Mods) | 4th | - | - | 18th |
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| 6/18/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #7 6th ANNUAL JOE BERRY CLASH OF THE B-MODS Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds | Results | | Randy Ainsworth (B Modifieds) | DNS | - | 12th | - |
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| 7/23/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #12 3rd Annual Karl Tinsley Memorial Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds, Dirt Late Models | Results | | Randy Ainsworth (B Modifieds) | 3rd | - | - | 8th |
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| 7/24/2021 | I-35 Speedway - Winston, MO Earley Tractor Night at the Races Hobby Stocks, Midwest Modifieds, Dirt Late Models, Lightning Sprints, Sport Compact, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Randy Ainsworth (USRA B-Mods) | 1st | - | - | 6th |
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| 7/30/2021 | Lakeside Speedway - Kansas City, KS Lakeside Speedway - WEST Dirt Super Late Models: SLMR Late Model Series Factory Stocks, Stock Cars, Midwest Modifieds, B Modifieds | Results | | Randy Ainsworth (B Modifieds) | 1st | - | - | 16th |
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| 8/27/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #16 Final Points Night Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds | Results | | Randy Ainsworth (B Modifieds) | 1st | - | - | 8th |
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| 9/24/2021 | Lakeside Speedway - Kansas City, KS Fall Series #2 Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds, Mod Lites | Results | | Randy Ainsworth (B Modifieds) | 5th | - | - | 9th |
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| 10/30/2021 | 81 Speedway - Park City, KS 2nd Annual USMTS Modified Spooktacular A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Modifieds | Results | | Randy Ainsworth (USRA B-Mods) | 9th | - | DNS | - |
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