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| 3/6/2021 | Springfield Raceway - Springfield, MO MARCH MADNESS Midwest Modifieds, Dirt Late Models, Pro Legends, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Midwest Modifieds) | 7th (DNF) | - | 3rd | 9th |
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| 4/3/2021 | Springfield Raceway - Springfield, MO OPENING NIGHT A Modifieds, Midwest Modifieds, Dirt Late Models, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods, Dirt Mini Late Models | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 4th | - | 2nd | 11th |
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| 4/11/2021 | Springfield Raceway - Springfield, MO CASHMONEY DIRT LATE MODELS Dirt Late Models: Cash Money Dirt Late Model Series A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 7th | - | 5th | - |
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| 5/1/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING & ADDED MONEY FOR MIDWEST MODS A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods, Dirt Mini Late Models | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 7th | - | 4th | - |
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| 5/8/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods, Dirt Mini Late Models | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 4th | - | - | 17th (DNF) |
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| 5/29/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING ALONG W/ POWDER PUFF RACING Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 3rd | - | - | 17th |
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| 6/5/2021 | Springfield Raceway - Springfield, MO Dirt Late Models: Cash Money Dirt Late Model Series Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 1st | - | - | 12th |
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| 6/12/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Midwest Modifieds) | - | - | - | - | | Mackenzi Tinderholt (Limited Sport Mod) | 5th | - | - | 16th |
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| 6/19/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING PRESENTED BY AMERICAN PRODUCTS Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 2nd | - | - | 16th |
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| 7/3/2021 | Springfield Raceway - Springfield, MO Dirt Late Models: Cash Money Dirt Late Model Series A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 5th | - | - | 9th |
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| 7/9/2021 | North Central Arkansas Speedway - Yellville, AR REGULAR SEASON RACE Hobby Stocks, Midwest Modifieds, B Modifieds, Hornets, Super Stocks | Results | | Mackenzi Tinderholt (Midwest Modifieds) | 4th | - | - | 5th |
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| 7/17/2021 | Monett Motor Speedway - Monett, MO weekly racing Stock Cars, Midwest Modifieds, B Modifieds, Street Stocks, Semi-Pro Legends, Asphalt Mini Stock, Pure Stock | Results | | Mackenzi Tinderholt (Midwest Modifieds) | - | - | - | - |
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| 7/22/2021 | Springfield Raceway - Springfield, MO GREENLAWN FUNERAL HOMES PRESENTS DIRTcar SUMMER NATIONALS DIRTcar Late Models: DIRTcar Summer Nationals Midwest Modifieds, Dirt Late Models, Limited Sport Mod, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 5th | - | - | 10th |
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| 7/23/2021 | North Central Arkansas Speedway - Yellville, AR REGULAR SEASON RACE Hobby Stocks, Midwest Modifieds, B Modifieds, Hornets, Super Stocks | Results | | Mackenzi Tinderholt (Midwest Modifieds) | 4th | - | - | 3rd |
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| 7/24/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 2nd | - | - | 9th |
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| 8/7/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING & MECHANICS RACE Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 3rd | - | - | 14th |
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| 8/14/2021 | Springfield Raceway - Springfield, MO Flyin Farmer 55 Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 4th | - | - | 9th |
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| 8/28/2021 | Springfield Raceway - Springfield, MO CEDAR CREEK BEEF JERKY WEEKLY RACING Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 4th | - | - | 10th |
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| 9/18/2021 | Springfield Raceway - Springfield, MO Midwest Sheetmetal Route 66 Showdown Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 4th | - | - | 12th |
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| 9/25/2021 | Springfield Raceway - Springfield, MO WEEKLY RACING & POWDER PUFF RACES Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 4th | - | - | 7th |
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| 10/9/2021 | Springfield Raceway - Springfield, MO TOTAL HIGHSPEED PRESENTS CASH MONEY LATE MODELS PLUS WEEKLY RACING Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 6th | - | 5th | - |
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| 10/16/2021 | Springfield Raceway - Springfield, MO FAN APPRECIATION NIGHT & SEASON CHAMPIONSHIPS Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 3rd | - | - | 6th |
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| 10/30/2021 | Springfield Raceway - Springfield, MO CASH MONEY LATE MODELS BROUGHT TO YOU BY HAYDEN MACHINERY & WHEELER METALS Dirt Late Models: Cash Money Dirt Late Model Series Stock Cars, A Modifieds, Midwest Modifieds, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 8th | - | - | 6th |
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| 11/6/2021 | Springfield Raceway - Springfield, MO BAD BOY MOWERS PRESENTS THE JOHN SCHNEIDER'S " BO'S ON THE ROAD" EXTRAVAGANZA Midwest Modifieds, Dirt Late Models, Pro Legends, Limited Sport Mod, Pure Stock, USRA B-Mods | Results | | Mackenzi Tinderholt (Limited Sport Mod) | 2nd | - | - | 9th |
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