Olivia Mastine tallied a hat trick as the top-seeded Phoenix (15-1) toppled the fourth-seeded Saints (7-9) in a Class C South semifinal at Thomas College in Waterville.

Avery Bessey scored the other goal, Mary Hamblin provided two assists and Adell Pease added one. Mallory Clark and Kyleigh Marcotte split time in net for Spruce Mountain.

Ava Martin scored the goal for St. Dom’s and Maia Cote made 21 saves in goal.