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| 1/8/2021 | Arizona Speedway - Queen Creek, AZ Open Practice Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | - | - | - | - |
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| 1/9/2021 | Arizona Speedway - Queen Creek, AZ Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | 7th | - | 9th | - |
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| 1/10/2021 | Arizona Speedway - Queen Creek, AZ Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | 3rd | - | 10th | - |
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| 1/12/2021 | Arizona Speedway - Queen Creek, AZ Open Practice & Pit Party Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | - | - | - | - |
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| 1/13/2021 | Arizona Speedway - Queen Creek, AZ Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | 10th | - | 15th | - |
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| 1/15/2021 | Arizona Speedway - Queen Creek, AZ Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | 4th | - | 9th | - |
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| 1/16/2021 | Arizona Speedway - Queen Creek, AZ Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | 6th | - | 17th | - |
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| 1/17/2021 | Arizona Speedway - Queen Creek, AZ Dirt Super Late Models, A Modifieds, B Modifieds | Results | | Nathan Smith (A Modifieds) | 5th | - | 10th | - |
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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 | | Nathan Smith (A Modifieds) | 2nd | - | - | 18th |
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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 | | Nathan Smith (A Modifieds) | 6th | - | 11th | - |
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| 3/13/2021 | Monarch Motor Speedway - Wichita Falls, TX USRA Modifieds: USRA American Racer Modified Series B Modifieds, Pony Stock, USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nathan Smith (USRA Modifieds) | 1st | - | - | 6th |
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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 | | Nathan Smith (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 | | Nathan Smith (USRA Modifieds) | 5th | - | 12th | - |
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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 | | Nathan Smith (A Modifieds) | 2nd | - | - | 8th |
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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 | | Nathan Smith (A Modifieds) | 7th | - | 15th | - |
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| 4/3/2021 | Vado Speedway Park - Vado, NM EggggggStravaganza Easter Weekend Celebration 360 Sprints - Non-Winged: NMMRA-New Mexico Motor Racing Association Hobby Stocks, Pro Legends, Super Truck, USRA Modifieds | Results | | Nathan Smith (USRA Modifieds) | 1st | - | - | 9th |
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| 4/9/2021 | Vado Speedway Park - Vado, NM Winter Meltdown Night 1 410 Sprints - Winged, A Modifieds, Pro Legends, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 1st | - | - | 8th |
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| 4/10/2021 | Vado Speedway Park - Vado, NM Winter Meltdown Night 2 410 Sprints - Winged, A Modifieds, Pro Legends, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 1st | - | - | 22nd (DNF) |
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| 4/17/2021 | Vado Speedway Park - Vado, NM Las Cruces/Fairacres/Mesilla Park/Tortugas/Dona Ana Night 305 Sprints - Winged, Midgets, A Modifieds, Dirt Late Models, Pro Legends, USRA B-Mods, USRA Modifieds | Results | | Nathan Smith (USRA Modifieds) | DNS | - | - | 17th (DNF) |
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| 4/24/2021 | Vado Speedway Park - Vado, NM El Paso Night Hobby Stocks, A Modifieds, Super Truck, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 5th | - | - | 18th (DNF) |
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| 5/22/2021 | Vado Speedway Park - Vado, NM Ciudad Juarez Night Hobby Stocks, A Modifieds, Super Truck, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 4th | - | - | 20th (DNF) |
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| 6/11/2021 | West Texas Raceway - Lubbock, TX USRA American Racer Modified Series USRA Modifieds: USRA American Racer Modified Series DIRTcar Factory Stock, A Modifieds, Street Stocks, USRA Limited Mods, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 2nd | - | - | 20th |
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| 6/12/2021 | Route 66 Motor Speedway - Amarillo, TX USRA Modified Special!! USRA Modifieds: USRA American Racer Modified Series A Modifieds, Street Stocks, Economy Late Models, USRA Limited Mods, USRA Tuners | Results | | Nathan Smith (USRA Modifieds) | 6th | - | DNS | - |
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| 7/10/2021 | Vado Speedway Park - Vado, NM MVT Fireworks Night Hobby Stocks, A Modifieds, Super Truck, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 1st | - | - | 16th (DNF) |
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| 7/30/2021 | Red Dirt Raceway - Meeker, OK 3rd Annual Cowboy 100 with USRA Modifieds USRA Modifieds: USRA American Racer Modified Series 600cc Modifieds, Sportsman Micros, Pure Stock | Results | | Nathan Smith (USRA Modifieds) | 2nd | - | - | 4th |
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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 | | Nathan Smith (USRA Modifieds) | 1st | - | - | 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 | | Nathan Smith (A Modifieds) | 7th | - | 9th | - |
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| 8/6/2021 | Humboldt Speedway - Humboldt, KS USMTS $10,000 to win + Humboldt Speedway Weekly Racing Series A Modifieds: USMTS - United States Modified Touring Series Factory Stocks, Midwest Modifieds, USRA B-Mods, USRA Tuners | Results | | Nathan Smith (A Modifieds) | 9th | - | 11th | - |
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| 8/7/2021 | Lucas Oil Speedway - Wheatland, MO 12th Annual USMTS Slick Mist Show-Me Shootout Presented by Foley Equipment A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (A Modifieds) | 2nd | - | - | 28th |
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| 9/8/2021 | 81 Speedway - Park City, KS “T-Mobile Night at the Races” Keeper of the Plains USMTS Race A Modifieds: USMTS - United States Modified Touring Series USRA B-Mods, USRA Modifieds | Results | | Nathan Smith (A Modifieds) | 2nd | - | - | 20th |
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| 9/9/2021 | RPM Speedway - Crandall, TX Inaugural USMTS Event A Modifieds: USMTS - United States Modified Touring Series USRA Limited Mods, USRA Factory Stocks, USRA Tuners | Results | | Nathan Smith (A Modifieds) | 2nd | - | - | 6th |
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| 9/10/2021 | Ark-La-Tex Speedway - Vivian, LA USMTS 9th Annual Cajun Clash A Modifieds: USMTS - United States Modified Touring Series Factory Stocks, B Modifieds, Limited Modified, Sport Compact | Results | | Nathan Smith (A Modifieds) | 9th | - | 8th | - |
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| 9/11/2021 | Revolution Park - Monroe, LA Inaugural USMTS Event A Modifieds: USMTS - United States Modified Touring Series | Results | | Nathan Smith (A Modifieds) | 1st | - | - | 23rd |
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| 10/22/2021 | Vado Speedway Park - Vado, NM USRA Fall Nationals Night 1 A Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 2nd | - | - | 17th |
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| 10/23/2021 | Vado Speedway Park - Vado, NM USRA Fall Nationals Night 2 A Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | 3rd | - | - | 9th |
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| 10/24/2021 | Vado Speedway Park - Vado, NM USRA Fall Nationals Finale A Modifieds, USRA B-Mods, USRA Modifieds, USRA Stock Cars | Results | | Nathan Smith (USRA Modifieds) | - | - | 1st | 8th |
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