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| 3/6/2021 | Red Dirt Raceway - Meeker, OK Champ 360 Sprints - Winged: Oil Capital Racing Series Restricted 'A' Class: NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros B Modifieds, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 3rd | - | - | 1st |
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| 3/7/2021 | Red Dirt Raceway - Meeker, OK Champ 360 Sprints - Winged: Oil Capital Racing Series Restricted 'A' Class: NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros B Modifieds, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 5th | - | - | 4th |
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| 3/26/2021 | Thunderbird Speedway - Muskogee, OK Okie Dirt Classic Dirt Super Late Models: Sooner Late Model Series Hobby Stocks, USRA B-Mods, USRA Modifieds | Results | | Colby Kasinger (Hobby Stocks) | 2nd | - | - | 3rd | | Colby Kasinger (USRA B-Mods) | 7th | - | 5th | 19th |
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| 3/27/2021 | Thunderbird Speedway - Muskogee, OK Okie Dirt Classic Dirt Super Late Models: Sooner Late Model Series Hobby Stocks, USRA B-Mods, USRA Modifieds | Results | | Colby Kasinger (Hobby Stocks) | 1st | - | - | 5th |
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| 4/2/2021 | Red Dirt Raceway - Meeker, OK Winged Sprints, Stock Non-Wing, B Modifieds, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 2nd | - | - | 1st |
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| 4/30/2021 | Red Dirt Raceway - Meeker, OK Winged Sprints, Stock Non-Wing, B Modifieds, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 1st | - | - | 1st |
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| 5/7/2021 | Red Dirt Raceway - Meeker, OK Winged Sprints, B Modifieds, Dwarf, Hornets, Sportsman Micros, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 1st | - | - | 1st |
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| 5/14/2021 | Red Dirt Raceway - Meeker, OK Non-Winged Sprints: United Sprint League Stock Non-Wing, B Modifieds, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 1st | - | - | 3rd |
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| 6/4/2021 | Red Dirt Raceway - Meeker, OK Winged Sprints, Stock Non-Wing, B Modifieds, Dwarf, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 1st | - | - | 2nd |
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| 6/11/2021 | Red Dirt Raceway - Meeker, OK Sooner 600 Week - Night 3 Restricted 'A' Class: NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros Midgets, B Modifieds, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 1st | - | - | 2nd |
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| 6/25/2021 | Red Dirt Raceway - Meeker, OK Champ 360 Sprints - Winged: Oil Capital Racing Series B Modifieds, Hornets, Sportsman Micros, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 1st | - | - | 5th |
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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 | | Colby Kasinger (Pure Stock) | 1st | - | - | 2nd |
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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 | | Colby Kasinger (Hobby Stocks) | 2nd | - | - | 1st |
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| 8/20/2021 | Outlaw Motor Speedway - Oktaha, OK Weekly program Factory Stocks, Midwest Modifieds, Dwarf, Hornets, Super Stocks, USRA B-Mods, USRA Modifieds | Results | | Colby Kasinger (Factory Stocks) | 1st | - | - | 2nd |
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| 9/10/2021 | Red Dirt Raceway - Meeker, OK Winged Sprints, Stock Non-Wing, B Modifieds, Dwarf, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 2nd | - | - | 2nd |
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| 9/25/2021 | Red Dirt Raceway - Meeker, OK 8th Annual Mark Robinson Memorial - FINALE B Modifieds, Adult Lites, Hornets, 65cc, 85cc, 250cc Open, Sportsman Micros, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 2nd | - | - | 5th |
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| 10/6/2021 | Lucas Oil Speedway - Wheatland, MO Practice Night USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Colby Kasinger (USRA Hobby Stocks) | - | - | - | - |
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| 10/7/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks | Results | | Colby Kasinger (USRA Hobby Stocks) | 8th | - | 4th | 23rd |
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| 10/8/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Colby Kasinger (USRA Hobby Stocks) | 6th | - | - | 29th (DNF) |
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| 10/9/2021 | Lucas Oil Speedway - Wheatland, MO 8th Annual Summit USRA Nationals Presented by MyRacePass USRA Stock Cars: USRA Nationals USRA B-Mods, USRA Modifieds, USRA Hobby Stocks, USRA Tuners | Results | | Colby Kasinger (USRA Hobby Stocks) | - | - | 4th | 31st (DNF) |
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| 10/16/2021 | Red Dirt Raceway - Meeker, OK Champ 360 Sprints - Winged: Oil Capital Racing Series 305 Sprints - Winged, Stock Non-Wing, B Modifieds, 270 Winged Micros, Hornets, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 6th | - | 1st | 8th |
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| 10/21/2021 | Tri-State Speedway - Pocola, OK 42 Annual Spooker Honoring John Stand - Small Classes Vintage Full Body Stock Cars, Limited Modified, Sport Compact, Pure Stock | Results | | Colby Kasinger (Pure Stock) | 2nd | - | - | - |
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| 10/22/2021 | Tri-State Speedway - Pocola, OK 42 Annual Spooker Honoring John Stand - Qualifying & Features Dirt Late Models: Cash Money Dirt Late Model Series Factory Stocks, A Modifieds, Street Stocks, Pure Stock, USRA B-Mods, USRA Modifieds, USRA Factory Stocks, USRA Stock Cars | Results | | Colby Kasinger (Factory Stocks) | 2nd | - | - | - | | Colby Kasinger (Pure Stock) | - | - | 1st | 13th |
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| 10/23/2021 | Tri-State Speedway - Pocola, OK 42 Annual Spooker Honoring John Stand - Features Factory Stocks, A Modifieds, Midwest Modifieds, Street Stocks, USRA B-Mods, USRA Modifieds, USRA Factory Stocks, USRA Stock Cars | Results | | Colby Kasinger (Factory Stocks) | - | - | - | 8th |
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