MORRISTOWN - In the late game, Brett Price scored 28 points as he helped River eliminate Bridgeport.
Cody Caldwell added nine points for the Pilots (15-6), who will play Caldwell at 6 p.m. on March 3 at Union Local High school.
Jordan Indermuhle added six points and 11 of River's 32 rebounds.
Cole Smelley led the Bulldogs (6-15) with 10 points. and six rebounds.