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| 3/24/2021 | Humboldt Speedway - Humboldt, KS KOA and Battle Practice A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Randal Schiffelbein Jr. (A Modifieds) | - | - | - | - | | Randal Schiffelbein Jr. (USRA Modifieds) | - | - | - | - |
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| 3/25/2021 | Humboldt Speedway - Humboldt, KS King Of America and Battle at the Bullring Night 1 A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Randal Schiffelbein Jr. (A Modifieds) | - | - | - | - | | Randal Schiffelbein Jr. (USRA Modifieds) | 3rd | - | 3rd | 15th |
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| 3/26/2021 | Humboldt Speedway - Humboldt, KS King Of America $5,000 to win + Battle Qualifying A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Stock Cars | Results | | Randal Schiffelbein Jr. (A Modifieds) | 11th | - | 7th | - |
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| 3/27/2021 | Humboldt Speedway - Humboldt, KS King Of America $20,000 to win, Battle at the Bullring $10,00 to win A Modifieds: USMTS - United States Modified Touring Series B Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Randal Schiffelbein Jr. (A Modifieds) | 9th | - | 6th | - |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 3rd | - | - | 5th |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 1st | - | - | 5th |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 5th | - | 10th | - |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 1st | - | - | 2nd |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 1st | - | - | 5th |
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| 7/2/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #9 4th ANNUAL GARY D STOCK CAR SPECIAL Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds | Results | | Randal Schiffelbein Jr. (A Modifieds) | 6th | - | - | 5th |
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| 7/3/2021 | Central Missouri Speedway - Warrensburg, MO Race #13, SPECIAL EVENT, 20th Annual Tom Wilson Memorial Night 1 Hobby Stocks, A Modifieds, B Modifieds, Super Stocks | Results | | Randal Schiffelbein Jr. (A Modifieds) | 4th | - | - | - |
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| 7/4/2021 | Central Missouri Speedway - Warrensburg, MO Race #14, SPECIAL EVENT, 20th Annual Tom Wilson Memorial Night 2 Hobby Stocks, A Modifieds, B Modifieds, Super Stocks | Results | | Randal Schiffelbein Jr. (A Modifieds) | - | - | 4th | 3rd |
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| 7/9/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #10 Autism Awareness Night Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds, Dirt Late Models | Results | | Randal Schiffelbein Jr. (A Modifieds) | 4th | - | - | 5th |
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| 7/16/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #11 Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds | Results | | Randal Schiffelbein Jr. (A Modifieds) | 3rd | - | - | 3rd |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 2nd | - | - | 5th |
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| 8/5/2021 | 81 Speedway - Park City, KS 10th Annual USMTS Sunflower State Showdown A Modifieds: USMTS - United States Modified Touring Series Stock Cars, B Modifieds, USRA Modifieds | Results | | Randal Schiffelbein Jr. (A Modifieds) | 9th | - | 16th | - |
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| 8/13/2021 | Lakeside Speedway - Kansas City, KS Weekly Racing #14 Factory Stocks, Stock Cars, A Modifieds, Midwest Modifieds, B Modifieds | Results | | Randal Schiffelbein Jr. (A Modifieds) | DNS | - | - | 10th (DNF) |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 3rd | - | - | 9th (DNF) |
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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 | | Randal Schiffelbein Jr. (A Modifieds) | 5th | - | 3rd | 19th | | Randal Schiffelbein Jr. (USRA Modifieds) | - | - | 3rd | 19th |
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