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| 3/8/2018 | Port City Raceway - Tulsa, OK The Clash - Night 1 Restricted 'A' Class: NOW600 National Micros with NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros Junior Sprints | Results | | Kieran Casillas (Winged A-Class) | 3rd | - | - | 16th |
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| 3/9/2018 | Port City Raceway - Tulsa, OK The Clash - Night 2 Restricted 'A' Class: NOW600 National Micros with NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Winged A-Class) | 9th | - | 8th | - |
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| 3/10/2018 | Port City Raceway - Tulsa, OK pratice Restricted 'A' Class: NOW600 National Micros with NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros Winged Outlaw, Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Winged A-Class) | 7th | - | 9th | - |
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| 5/5/2018 | Port City Raceway - Tulsa, OK Winged Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Winged A-Class) | 4th | - | - | 14th |
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| 5/19/2018 | Port City Raceway - Tulsa, OK Winged Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Winged A-Class) | 7th (DNF) | - | - | 15th (DNF) |
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| 6/23/2018 | Port City Raceway - Tulsa, OK Sooner 600 Week Finale - Lucas Oil NOW600 National Series Restricted 'A' Class: NOW600 National Micros with NOW600 Restricted Micros Winged A-Class: NOW600 A-Class Micros Stock Non-Wing: NOW600 Non-Wing Micros Winged Outlaw, Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Winged A-Class) | 7th | - | 11th | - |
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| 8/25/2018 | Port City Raceway - Tulsa, OK Winged Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Stock Non-Wing) | 8th | - | DNS | - |
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| 9/15/2018 | Port City Raceway - Tulsa, OK Winged Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Winged A-Class) | - | - | - | - | | Kieran Casillas (Stock Non-Wing) | 5th | - | - | 14th |
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| 9/29/2018 | Port City Raceway - Tulsa, OK Winged Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, Sportsman Micros | Results | | Kieran Casillas (Stock Non-Wing) | 5th | - | 9th | - |
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| 12/31/2018 | Tulsa Expo Raceway - Tulsa, OK Early Parking Winged Outlaw: Tulsa Shootout Non-Wing Outlaw, Restricted 'A' Class, Winged A-Class, Stock Non-Wing, Junior Sprints, 600cc Modifieds | Results | | Kieran Casillas (Winged Outlaw) | - | - | - | - | | Kieran Casillas (Non-Wing Outlaw) | - | - | - | - | | Kieran Casillas (Winged A-Class) | - | - | - | - | | Kieran Casillas (Stock Non-Wing) | - | - | - | - |
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