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| 1/1/2015 | Tulsa Expo Raceway - Tulsa, OK Racing - Night 2 Midgets, Economy Midgets, Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, 1200cc Outlaws Non-Winged Minis, Lightning Sprints | Results | | Colby Stubblefield (Restricted 'A' Class) | 3rd | - | - | - |
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| 1/2/2015 | Tulsa Expo Raceway - Tulsa, OK Racing - Night 3 Midgets, Economy Midgets, Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, 1200cc Outlaws Non-Winged Minis, Lightning Sprints | Results | | Colby Stubblefield (Restricted 'A' Class) | 3rd | - | - | - |
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| 1/3/2015 | Tulsa Expo Raceway - Tulsa, OK Racing - Night 4 Midgets, Economy Midgets, Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, 1200cc Outlaws Non-Winged Minis, Lightning Sprints | Results | | Colby Stubblefield (Restricted 'A' Class) | - | - | - | 3rd |
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| 3/28/2015 | Hunt County Raceway - Greenville, TX Restricted 'A' Class: NOW600 National Micros with NOW600 Restricted Micros, TOWR Restricted Micros Winged A-Class: NOW600 A-Class Micros with TOWR A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros with TOWR Non-Wing Micros | Results | | Colby Stubblefield (Winged A-Class) | 7th | - | - | 7th |
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| 9/4/2015 | Heart O' Texas Speedway - Waco, TX 305 Sprints - Winged: Southern United Sprint Series Restricted 'A' Class: TOWR Restricted Micros with POWRi Lonestar 600 Restrictor's Winged A-Class: TOWR A-Class Micros | Results | | Colby Stubblefield (Restricted 'A' Class) | 2nd | - | - | 1st | | Colby Stubblefield (Winged A-Class) | 1st | - | - | 12th |
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| 12/28/2015 | Tulsa Expo Raceway - Tulsa, OK Early Move-In Economy Midgets, Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, 1200cc Outlaws Non-Winged Minis, 1200cc Outlaws Winged Minis | Results | | Colby Stubblefield (Restricted 'A' Class) | - | - | - | - | | Colby Stubblefield (Stock Non-Wing) | - | - | - | - |
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| 12/29/2015 | Tulsa Expo Raceway - Tulsa, OK Move-In / Registation Economy Midgets, Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, 1200cc Outlaws Non-Winged Minis, 1200cc Outlaws Winged Minis | Results | | Colby Stubblefield (Restricted 'A' Class) | 5th | - | - | - |
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| 12/31/2015 | Tulsa Expo Raceway - Tulsa, OK Racing Economy Midgets, Winged Outlaw, Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, 1200cc Outlaws Non-Winged Minis, 1200cc Outlaws Winged Minis | Results | | Colby Stubblefield (Restricted 'A' Class) | 6th | - | - | - | | Colby Stubblefield (Stock Non-Wing) | 4th | - | - | - |
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