BANGOR – Top-ranked Presque Isle opened a 25-point halftime lead Saturday, then breezed to a 48-27 victory against eighth-seeded Gardiner in an Eastern Class B schoolgirl basketball quarterfinal at the Bangor Auditorium.

Presque Isle will meet fourth-seeded Nokomis (16-2) in the semifinals at 3:30 p.m. Wednesday at the Auditorium.

“Once we got past the first quarter, we played a lot more comfortable,” Gardiner Coach Mike Gray said. “And we still made mistakes we don’t normally make and missed shots we don’t normally miss. We were just overwhelmed. I kind of feared that might happen.”

It was the first appearance in the quarterfinals for Gardiner since 2004, when it was in Eastern Class A.

Gardiner committed five straight turnovers to open the game and trailed 6-0 before getting off a shot. Presque Isle forced 18 turnovers in the first half, many leading to layups. The score was 20-3 after one quarter and 33-8 at halftime.

“The whole first half we played awesome,” said Presque Isle Coach Jeff Hudson.

BOYS

HAMPDEN ACADEMY 70, LEWISTON 51: Graham Safford scored 23 points to lead second-seeded Hampden Academy (16-3) over seventh-ranked Lewiston (9-10) in an Eastern Class A quarterfinal at Augusta.

VINALHAVEN 63, ISLESBORO 55: Steven Osgood scored 12 of his 28 points in the fourth quarter as the fifth-seeded Vikings (10-6) knocked off the fourth-ranked Eagles (16-3) in a Western Class D quarterfinal at Augusta.

Vinalhaven outscored Isles-boro 24-16 in the fourth quarter to avenge a 28-point loss to the Eagles in its regular-season finale. Brian Stanley and Bobby Beckman each had 14 points for the Vikings, who will face top-ranked Forest Hills in the semifinals Wednesday at Augusta.

D.J. Johnson scored 23 points for Islesboro.