BRIDGTON — Owen Galligan scored with 3:46 left in the fourth overtime as sixth-seeded Lake Region/Fryeburg/Oxford Hills (12-6) beat No. 11 Marshwood/Traip/Sanford/Noble (8-10-1), 4-3, in a Class A preliminary-round game at Chalmers Ice Arena on Wednesday.

Lake Region led 3-1 after second-period goals by Wyatt Knightly and Caleb Micklon, but the Knighthawks forced overtime when Sam Knowles and Joshua Sawyer scored in the third period.

Thomas Demeroto got a first-period goal for Marshwood. Kaden Neureuther opened the scoring in the first period for the Ice Cats.

SOUTH PORTLAND/FREEPORT/WAYNFLETE 5, ST. DOMINIC 1: Dylan Hannan scored twice and third-seeded South Portland/Freeport/Waynflete (12-6-1) advanced to the Class A quarterfinals by defeating the 14th-seeded Saints (1-18) at Troubh Ice Arena.

Cullen Adams got the only goal of the first period, and South Portland stretched its lead to 4-1 in the second on goals by Hannan, Ian Wright and Brady Frank.

Colin Casserly scored for St. Dom’s.

THORNTON ACADEMY 3, MT. ARARAT/LISBON/MORSE 1: Freshman Gavin Pellerin scored the tiebreaking goal through a screen with 6:37 remaining, lifting the fifth-seeded Trojans (14-5) over 12th-seeded Mt. Ararat/Lisbon/Morse (6-13) in a Class A prelim at Biddeford Ice Arena.

Evan Beaudette added an empty-netter as Thornton advanced to face No. 4 Falmouth in the quarterfinals.

Thornton broke a scoreless deadlock midway through the second period when a Mt. Ararat player tried to clear a loose puck in front of the net but knocked it in. Zander Kirk answered with a power-play goal at 13:09, deflecting a shot from the slot by Dylan Richards.