After a sluggish first half, Georgetown broke away from Brigham Young-Hawaii with a full-court press at the start of the second half and defeated the Seasiders, 72-51, in the basketball opener for both teams Friday night.

Georgetown, ranked second in both preseason wire service polls, led, 27-25, at halftime in a game played in a gymnasium lighted with power from portable generators. Hurricane Iwa left this part of Oahu without power when it struck earlier in the week and the Hoyas had to practice in the dark on Thanksgiving.

The full-court press enabled Georgetown to outscore BYU, 17-5, in the First seven minutes of the second half for a 45-30 lead.

At that point, Georgetown Coach John Thompson decided to give star center Patrick Ewing a rest. But when the Seasiders scored six straight points, he hustled Ewing back into the lineup. Ewing responded by feeding Michael Jackson with an outlet pass for an easy basket and then blocked a shot on BYU's next possession.

At that point Ewing had seven rebounds and five blocked shots.

Elijah Jackson, BYU's leading scorer in the first half with 11 points, picked up his fourth foul with 10 1/2 minutes remaining and went to the bench. From then on, Georgetown dominated.

David Wingate, a freshman who played three different positions, led the Hoyas with 18 points. Anthony Jones had 16, Michael Jackson 13 and Ewing eight. Ewing also had nine rebounds and seven blocked shots.

The Hoyas ended their trip with a game against Hawaii-Hilo last night.