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| 3/5/2021 | RPM Speedway - Crandall, TX Texas Spring Nationals Night 1 A Modifieds: USMTS - United States Modified Touring Series Dwarf, Limited Sport Mod, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nicholas Kirby (USRA Factory Stocks) | 8th | - | 7th | - |
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| 3/6/2021 | RPM Speedway - Crandall, TX Texas Spring Nationals Night 2 A Modifieds: USMTS - United States Modified Touring Series Limited Sport Mod, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nicholas Kirby (USRA Factory Stocks) | 9th | - | 9th | - |
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| 3/12/2021 | Boothill Speedway - Greenwood, LA Rescheduled 2nd Annual Ronny Adams Memorial - Night #1 Factory Stocks, Dirt Late Models, Limited Modified | Results | | Nicholas Kirby (Factory Stocks) | 5th | - | - | - |
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| 3/13/2021 | Boothill Speedway - Greenwood, LA Rescheduled 2nd Annual Ronny Adams Memorial - Night #2 Factory Stocks, Dirt Late Models, CRUSA Dirt Late Models | Results | | Nicholas Kirby (Factory Stocks) | - | - | 3rd | 17th |
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| 4/3/2021 | Hunt County Raceway - Greenville, TX Texas Winged Modifieds Stock Cars, Restricted 'A' Class, Winged A-Class, Super Stocks, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nicholas Kirby (USRA Factory Stocks) | 4th | - | - | 7th |
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| 4/10/2021 | Boothill Speedway - Greenwood, LA Factory Stocks, B Modifieds, CRUSA Dirt Late Models, Limited Modified, Sport Compact | Results | | Nicholas Kirby (Factory Stocks) | 2nd | - | - | 12th |
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| 4/24/2021 | 105 Motor Speedway - Cleveland, TX Weekly Racing Series Factory Stocks, Stock Non-Wing, B Modifieds, Street Stocks, Bandits, Pure Stock | Results | | Nicholas Kirby (Factory Stocks) | 3rd | - | - | 2nd |
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| 5/15/2021 | Boothill Speedway - Greenwood, LA Battle of Boothill Factory Stocks, B Modifieds, CRUSA Dirt Late Models, Limited Modified, Sport Compact | Results | | Nicholas Kirby (Factory Stocks) | 9th | - | 7th | - |
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| 5/29/2021 | 105 Motor Speedway - Cleveland, TX Weekly Racing Series Factory Stocks, Sportsmans, B Modifieds, Street Stocks, Pure Stock | Results | | Nicholas Kirby (Factory Stocks) | 6th (DNF) | - | - | 11th |
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| 5/30/2021 | Lonestar Speedway - Kilgore, TX Memorial Day Showdown Factory Stocks, A Modifieds, B Modifieds, Dirt Late Models, Sport Compact | Results | | Nicholas Kirby (Factory Stocks) | 3rd | - | - | 20th |
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| 6/12/2021 | Lonestar Speedway - Kilgore, TX Factory Stocks, A Modifieds, B Modifieds, Sport Compact | Results | | Nicholas Kirby (Factory Stocks) | 8th | - | - | 10th |
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| 6/19/2021 | Hunt County Raceway - Greenville, TX USRA American Racer Modified Series USRA Modifieds: USRA American Racer Modified Series Stock Cars, A Modifieds, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nicholas Kirby (USRA Factory Stocks) | 7th | - | 10th | - |
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| 10/2/2021 | Hunt County Raceway - Greenville, TX TOMS Modifieds A Modifieds: TOMS - Touring Outlaw Modified Series Stock Cars, Restricted 'A' Class, Winged A-Class, Super Stocks, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nicholas Kirby (USRA Factory Stocks) | 4th | - | - | 3rd |
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| 10/9/2021 | Hunt County Raceway - Greenville, TX Tommy Davis Sr. Memorial Race, Southern Topless Economy Modifieds Stock Cars, A Modifieds, Dirt Late Models, Limited Modified, Super Stocks, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nicholas Kirby (USRA Factory Stocks) | 2nd | - | - | 6th |
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| 10/16/2021 | Boothill Speedway - Greenwood, LA 7th Annual Battle of Boothill - Night 2 CRUSA Dirt Late Models: Crate Racin' USA Dirt Late Model Series Factory Stocks, Limited Modified | Results | | Nicholas Kirby (Factory Stocks) | 3rd | - | - | 5th |
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| 10/22/2021 | Sabine Speedway - Many, LA FALL SOUTHERN SHOWDOWN Factory Stocks, Street Stocks, Asphalt Pure Stocks, Limited Modified | Results | | Nicholas Kirby (Factory Stocks) | 6th | - | - | - |
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| 10/23/2021 | Sabine Speedway - Many, LA FALL SOUTHERN SHOWDOWN Factory Stocks, Limited Modified, Dirt Crate Late Models | Results | | Nicholas Kirby (Factory Stocks) | - | - | 15th | - |
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| 11/12/2021 | 105 Motor Speedway - Cleveland, TX The 26th Annual Renegade Race Fuel Texas Grand Factory Stocks, B Modifieds, Street Stocks, Bandits, Pure Stock, IMCA Modified | Results | | Nicholas Kirby (Factory Stocks) | 5th | - | - | - |
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| 11/13/2021 | 105 Motor Speedway - Cleveland, TX The 26th Annual Renegade Race Fuel Texas Grand Factory Stocks, B Modifieds, Street Stocks, Bandits, Pure Stock, IMCA Modified | Results | | Nicholas Kirby (Factory Stocks) | - | - | 2nd | 3rd |
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