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| 1/2/2021 | 411 Motor Speedway - Seymour, TN The Hangover Day 2 Dirt Super Late Models, Sportsmans, A Modifieds, Street Stocks, Vintage Modifieds, Economy Late Models, Asphalt Mini Stock, Dirt Crate Late Models | Results | | Clayton Miller (Asphalt Mini Stock) | - | - | - | - |
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| 4/23/2021 | Boyd's Speedway - Ringgold, GA Tennessee Whiskey Classic Brucebuilt Performance Iron Man Modified Series A Modifieds: Iron-Man Modified Series Asphalt Late Models, Asphalt Super Late Models, DIRTcar Late Models, Street Stocks, Dirt Late Models, Economy Late Models, Pro Late Model | Results | | Clayton Miller (305 Sprints - Winged) | - | - | - | - | | Clayton Miller (A Modifieds) | - | - | - | 4th |
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| 5/8/2021 | Mountain View Raceway - Spring City, TN FWD $500 to Win Hobby Stocks, Sportsmans, Street Stocks, Dirt Late Models, Economy Late Models, 600cc Modifieds, Pure Stock, Dirt Big Block Modifieds | Results | | Clayton Miller (Dirt Big Block Modifieds) | - | - | - | 8th |
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| 5/15/2021 | Wartburg Speedway - Wartburg, TN A Modifieds: Iron-Man Modified Series | Results | | Clayton Miller (A Modifieds) | - | - | - | 2nd |
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| 6/12/2021 | I-75 Raceway - Sweetwater, TN Brucebilt Iron-Man Open Wheels + weekly classes A Modifieds: Iron-Man Modified Series DIRTcar UMP Modifieds, Factory Stocks, Asphalt Mini Stocks, Hobby Stocks, Dirt Late Models, Economy Late Models, Asphalt 4-Cylinders, Asphalt Rookie Stocks | Results | | Clayton Miller (DIRTcar UMP Modifieds) | - | - | - | - | | Clayton Miller (A Modifieds) | - | - | - | 1st |
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| 6/19/2021 | Smoky Mountain Speedway - Maryville, TN 17th Annual Iron-Man Classic Dirt Super Late Models: Iron-Man Late Model Series A Modifieds: Iron-Man Modified Series DIRTcar UMP Modifieds, Dirt Late Models, Dirt Crate Late Models | Results | | Clayton Miller (A Modifieds) | - | - | - | 2nd |
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| 6/25/2021 | 411 Motor Speedway - Seymour, TN The 10th Annual JT Kerr Memorial - Day 1 Sportsmans, A Modifieds, Street Stocks, Vintage Modifieds, Economy Late Models, Dirt Crate Late Models | Results | | Clayton Miller (A Modifieds) | - | - | - | 1st |
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| 6/26/2021 | 411 Motor Speedway - Seymour, TN The 10th Annual JT Kerr Memorial - Day 2 Hobby Stocks, Sportsmans, A Modifieds, Economy Late Models, Asphalt Mini Stock, Dirt Crate Late Models | Results | | Clayton Miller (A Modifieds) | - | - | - | 7th |
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| 7/17/2021 | Mountain View Raceway - Spring City, TN Bang Banger 50 + Weekly Classes Hobby Stocks, Sportsmans, Street Stocks, Dirt Late Models, Economy Late Models, Pure Stock, Dirt Big Block Modifieds | Results | | Clayton Miller (Dirt Big Block Modifieds) | - | - | - | 1st |
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| 8/14/2021 | Western Kentucky Speedway - Madisonville, KY Exciting Night of Racing Factory Stocks, Hobby Stocks, Stock Cars, Street Stocks, Hornets, Dirt Crate Late Models | Results | | Clayton Miller (Street Stocks) | 1st | - | - | 1st |
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| 10/16/2021 | Thunderhill Raceway - Summertown, TN Keota Faulkner Memorial Race Pony Stock, CRUSA Street Stocks, Outlaw Hobby Stocks, CRUSA Modified Sportsman, Speedstr | Results | | Clayton Miller (CRUSA Street Stocks) | 2nd | - | - | 1st |
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| 11/26/2021 | 411 Motor Speedway - Seymour, TN The Leftover Day 1 A Modifieds: Iron-Man Modified Series Dirt Super Late Models, Sportsmans, Street Stocks, Vintage Modifieds, Economy Late Models, Asphalt Mini Stock, Dirt Crate Late Models | Results | | Clayton Miller (A Modifieds) | - | - | - | 20th |
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| 11/27/2021 | 411 Motor Speedway - Seymour, TN The Leftover Day 2 Dirt Super Late Models: Iron-Man Late Model Series A Modifieds: Iron-Man Modified Series Hobby Stocks, Sportsmans, Economy Late Models, Asphalt Mini Stock, Dirt Crate Late Models | Results | | Clayton Miller (A Modifieds) | - | - | - | 4th |
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