Vinny Abbondola had 14 points and six rebounds as No. 7 St. John the Baptist upended second-seeded Holy Trinity, 55-42, in a CHSAA boys quarterfinal on Friday night.
Charles Joyner added 12 points, including 5 of 6 free throws in the fourth to help seal it for St. John the Baptist (5-20), which will face No. 3 St. Mary's in a semifinal at 2:30 p.m. Sunday at Hofstra.
Kyle Williams had seven points, 16 rebounds and nine blocks and freshman Tavon Ginyard had nine points in his first start of the year for the Cougars.
Abbondola had seven points during a 17-10 second quarter and helped the Cougars take a 27-23 halftime lead.
"We stuck with the game plan and got after it defensively," Cougars coach Andre Edwards said. "We're peaking at the right time, we're playing some of our best basketball right now."
Mike Callaghan had a game-high 16 points for Holy Trinity.