Unaka was unable to keep pace on Friday night.
The Rangers dropped a 56-6 decision to J.I Burton (Va.) at Goddard Field.
The Raiders jumped out early to take control to take a 14-0 lead in the opening minutes.
Unaka broke onto the board midway in the second as Brayden Otey hit Asher Dunn for an 11-yard touchdown. Dunn finished with 47 receiving yards.
Unaka is set to travel to Twin Springs (Va.) next week.