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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 | | Jack Sartain (A Modifieds) | 7th | - | 13th | - |
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| 3/6/2021 | Rocket Raceway Park - Petty, TX Season Opener Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 2nd | - | - | 3rd |
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| 3/20/2021 | Bristol Motor Speedway - Bristol, TN Bristol Dirt Nationals Dirt Super Late Models: XR Workin' Man Series DIRTcar UMP Modifieds, Stock Cars, A Modifieds, Hornets, IMCA Sport Compact, 604 Crate Late Models | Results | | Jack Sartain (A Modifieds) | - | - | 7th | - |
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| 3/27/2021 | Devil's Bowl Speedway - Mesquite, TX 2021 Points Opener 305 Sprints - Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 3rd | - | - | 3rd |
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| 4/2/2021 | RPM Speedway - Crandall, TX 305 Sprints - Non-Winged, Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 5th | - | 1st | 7th |
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| 4/3/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Winged Sprints: Bandits Outlaw Sprint Series Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 2nd |
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| 4/10/2021 | Rocket Raceway Park - Petty, TX $5,000/win FACTORY STOCKS! TEXAS SPRINT SERIES! 305 Sprints - Winged: Texas Sprint Series Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, IMCA RaceSaver Sprint Car | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 4th |
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| 4/24/2021 | Devil's Bowl Speedway - Mesquite, TX Weekly Championship Series #3 305 Sprints - Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 2nd | - | - | 2nd |
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| 4/30/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Dirt Super Late Models, Factory Stocks, Midwest Modifieds, USRA B-Mods, USRA Modifieds | Results | | Jack Sartain (USRA Modifieds) | 8th (DNF) | - | DNS | - |
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| 5/8/2021 | Big O Speedway - Ennis, TX Saturday Night at BIG O DIRTcar Late Models, Factory Stocks, Hornets, Limited Sport Mod, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 2nd |
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| 5/14/2021 | RPM Speedway - Crandall, TX KR Cup Round #6 Dwarf, Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 4th |
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| 5/15/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 3rd |
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| 5/22/2021 | Revolution Park - Monroe, LA USRA Modifieds: USRA American Racer Modified Series | Results | | Jack Sartain (USRA Modifieds) | 3rd | - | 1st | 11th |
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| 5/29/2021 | Creek County Speedway - Sapulpa, OK Champ 360 Sprints - Winged: Oil Capital Racing Series Asphalt Mini Stocks, Hobby Stocks, A Modifieds | Results | | Jack Sartain (A Modifieds) | 2nd | - | - | 3rd |
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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 | | Jack Sartain (A Modifieds) | 6th | - | - | 6th |
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| 6/12/2021 | Devil's Bowl Speedway - Mesquite, TX Weekly Championship Series #8 305 Sprints - Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 4th |
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| 6/17/2021 | RPM Speedway - Crandall, TX KR Cup Event Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 3rd |
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| 6/18/2021 | Buffalo Creek Speedway - Edgewood, TX Zeek's Construction USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | - | - | - | 5th |
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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 | | Jack Sartain (USRA Modifieds) | 5th | - | 3rd | 15th |
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| 6/20/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 2nd | - | - | DNS |
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| 7/3/2021 | Rocket Raceway Park - Petty, TX 82 Speedway Winged Sprints: Bandits Outlaw Sprint Series Hobby Stocks, Stock Cars, 600cc Modifieds, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 7th | - | - | 5th |
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| 7/9/2021 | RPM Speedway - Crandall, TX KR Cup Round #10 Dwarf, Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 2nd | - | - | 13th |
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| 7/10/2021 | Devil's Bowl Speedway - Mesquite, TX Weekly Championship Series #12 305 Sprints - Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 12th |
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| 7/17/2021 | Devil's Bowl Speedway - Mesquite, TX Weekly Championship Series #13 305 Sprints - Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 3rd | - | - | 2nd |
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| 7/23/2021 | RPM Speedway - Crandall, TX KR Cup Round #11 Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 4th |
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| 7/24/2021 | Devil's Bowl Speedway - Mesquite, TX Weekly Championship Series #14 305 Sprints - Winged, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 10th |
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| 7/31/2021 | Creek County Speedway - Sapulpa, OK Beer 30 - #Club91 Funkadelic Tour USRA Modifieds: USRA American Racer Modified Series Asphalt Mini Stocks, Hobby Stocks, Pony Stock | Results | | Jack Sartain (USRA Modifieds) | 6th | - | - | 10th |
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| 8/6/2021 | RPM Speedway - Crandall, TX 305 Sprints - Non-Winged, Limited Sport Mod, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 5th | - | - | 3rd |
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| 8/7/2021 | Hunt County Raceway - Greenville, TX Weekly Show, USRA Modifieds Stock Cars, Restricted 'A' Class, Winged A-Class, Super Stocks, USRA Limited Mods, USRA Modifieds, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 15th |
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| 8/13/2021 | Big O Speedway - Ennis, TX FRIDAY NIGHT RACES 305 Sprints - Winged, DIRTcar Late Models, Factory Stocks, Limited Sport Mod, USRA Modifieds | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 5th |
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| 8/21/2021 | Hunt County Raceway - Greenville, TX American Racer Modified Series Restricted 'A' Class: NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros USRA Modifieds: USRA American Racer Modified Series Stock Cars, Super Stocks, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 2nd | - | - | 1st |
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| 8/27/2021 | Ark-La-Tex Speedway - Vivian, LA USRA Modifieds: USRA American Racer Modified Series Factory Stocks, B Modifieds, Limited Modified, Dirt Crate Late Models | Results | | Jack Sartain (USRA Modifieds) | 6th | - | 4th | 23rd (DNF) |
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| 9/4/2021 | RPM Speedway - Crandall, TX 7th Annual Bryan Mize Memorial USRA Modifieds: USRA American Racer Modified Series A Modifieds, Dwarf, Limited Modified, USRA Limited Mods, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 5th | - | 3rd | 16th |
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| 9/5/2021 | RPM Speedway - Crandall, TX 3rd Annual Ronny Sigman Memorial Dirt Late Models: XR Southern Storm with American Crate Late Model Series USRA Modifieds: USRA American Racer Modified Series A Modifieds, Limited Sport Mod, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 5th | - | 9th | 13th |
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| 9/24/2021 | West Texas Raceway - Lubbock, TX 5TH ANNUAL SCOOTER MATTHEWS MEMORIAL FIRECRACKER SHOOTOUT Sprint Cars, DIRTcar Factory Stock, Street Stocks, USRA Limited Mods, USRA Modifieds, USRA Stock Cars | Results | | Jack Sartain (USRA Modifieds) | 3rd | - | - | 7th |
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| 9/25/2021 | West Texas Raceway - Lubbock, TX 5TH ANNUAL SCOOTER MATTHEWS MEMORIAL FIRECRACKER SHOOTOUT NIGHT 2 Sprint Cars, DIRTcar Factory Stock, Street Stocks, USRA Limited Mods, USRA Modifieds, USRA Stock Cars | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 15th |
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| 10/2/2021 | Big O Speedway - Ennis, TX Winged Sprints, DIRTcar Late Models, Factory Stocks, Hornets, Limited Sport Mod, USRA Modifieds, USRA Factory Stocks, Figure 8 - FWD Stock | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 1st |
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| 10/9/2021 | Big O Speedway - Ennis, TX DIRTcar Late Models, Factory Stocks, Hornets, Limited Sport Mod, USRA Modifieds, USRA Factory Stocks | Results | | Jack Sartain (USRA Modifieds) | 7th | - | 2nd | 17th |
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| 10/23/2021 | RPM Speedway - Crandall, TX Inaugural Cowboy Up Classic USRA Modifieds: USRA American Racer Modified Series Limited Modified, Limited Sport Mod, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 4th | - | - | 18th (DNF) |
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| 11/4/2021 | Boothill Speedway - Greenwood, LA Summit USRA Southern Nationals USRA Modifieds: USRA American Racer Modified Series USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 1st | - | - | 6th |
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| 11/5/2021 | Boothill Speedway - Greenwood, LA Summit USRA Southern Nationals USRA Modifieds: USRA American Racer Modified Series USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 8th | - | 11th | 23rd |
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| 11/6/2021 | Boothill Speedway - Greenwood, LA Summit USRA Southern Nationals USRA Modifieds: USRA American Racer Modified Series USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Jack Sartain (USRA Modifieds) | 3rd | - | - | 22nd |
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| 12/3/2021 | The Dome at America's Center - St. Louis, MO Castrol Gateway Dirt Nationals Midgets, Dirt Super Late Models, A Modifieds | Results | | Jack Sartain (A Modifieds) | 7th | - | 6th | - |
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| 12/4/2021 | The Dome at America's Center - St. Louis, MO Midgets, Dirt Super Late Models, A Modifieds | Results | | Jack Sartain (A Modifieds) | - | - | 5th | - |
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