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| 6/12/2021 | Gulf Coast Speedway - Alvin, TX Restricted 'A' Class: POWRi Lonestar 600 Restrictor's Stock Non-Wing: POWRi Lonestar 600's Non Wing Junior Sprints: POWRi Lonestar 600's Jr Sprint's Sportsman Micros: NOW600 C2 Micros Winged Outlaw, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Senior Micros | Results | | Joe Duncan (Sportsman Micros) | 5th | - | - | 16th |
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| 6/19/2021 | Gulf Coast Speedway - Alvin, TX Sportsman Micros: NOW600 C2 Micros Non-Wing Outlaw, Restricted 'A' Class, Stock Non-Wing, Junior Sprints, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Flat RWYB, Senior Micros, Predator Maxxis | Results | | Joe Duncan (Sportsman Micros) | 4th | - | - | 12th |
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| 6/26/2021 | I-37 Speedway - Pleasanton, TX I-37 Speedway Fireworks Night Factory Stocks, Asphalt Mini Stocks, Restricted 'A' Class, Stock Non-Wing, Street Stocks, Limited Modified, IMCA Modified | Results | | Joe Duncan (Stock Non-Wing) | 4th | - | - | 10th |
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| 7/16/2021 | Gulf Coast Speedway - Alvin, TX Restricted 'A' Class, Stock Non-Wing, Junior Sprints, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Sportsman Micros, Senior Micros | Results | | Joe Duncan (Sportsman Micros) | 2nd | - | - | 13th (DNF) |
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| 7/17/2021 | Gulf Coast Speedway - Alvin, TX Sportsman Micros: NOW600 C2 Micros Winged Outlaw, Restricted 'A' Class, Stock Non-Wing, Junior Sprints, Dwarf, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Mod Lites, Senior Micros | Results | | Joe Duncan (Sportsman Micros) | 7th | - | - | 16th |
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| 8/21/2021 | Gulf Coast Speedway - Alvin, TX Sportsman Micros: NOW600 C2 Micros Non-Wing Outlaw, Restricted 'A' Class, Stock Non-Wing, Junior Sprints, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Flat RWYB, Senior Micros, Predator Maxxis | Results | | Joe Duncan (Sportsman Micros) | 6th | - | - | 16th |
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| 9/11/2021 | Gulf Coast Speedway - Alvin, TX Restricted 'A' Class: POWRi Lonestar 600 Restrictor's Stock Non-Wing: POWRi Lonestar 600's Non Wing Junior Sprints: POWRi Lonestar 600's Jr Sprint's Sportsman Micros: NOW600 C2 Micros Non-Wing Outlaw, Winged A-Class, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Senior Micros | Results | | Joe Duncan (Sportsman Micros) | 8th (DNF) | - | - | - |
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| 10/16/2021 | Gulf Coast Speedway - Alvin, TX Sportsman Micros: NOW600 C2 Micros Winged Outlaw, Restricted 'A' Class, Stock Non-Wing, Junior Sprints, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Cage Jr. Predator, Cage Sr. Predator, Senior Micros, Predator Hoosier | Results | | Joe Duncan (Sportsman Micros) | 4th | - | - | 9th |
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| 10/22/2021 | Gulf Coast Speedway - Alvin, TX Sportsman Micros: NOW600 C2 Micros Non-Wing Outlaw, Restricted 'A' Class, Restricted Non Winged Micros, Stock Non-Wing, Junior Sprints, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Mod Lites, Senior Micros | Results | | Joe Duncan (Sportsman Micros) | 2nd | 8th | - | 15th |
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| 10/23/2021 | Gulf Coast Speedway - Alvin, TX Sportsman Micros: NOW600 C2 Micros Non-Wing Outlaw, Restricted 'A' Class, Restricted Non Winged Micros, Stock Non-Wing, Junior Sprints, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2 | Rain Out |
| 11/6/2021 | Gulf Coast Speedway - Alvin, TX Restricted 'A' Class, Stock Non-Wing, Junior Sprints, Dirt Cage Kart Junior 1, Dirt Cage Kart Junior 2, Sportsman Micros | Results | | Joe Duncan (Sportsman Micros) | 5th | - | - | 11th |
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