Lindsay Koch led Weston with five goals. She also had three assists.
Frances Holmes (five assists), scored two. Taylor Swanson (two assists), Danielle DeCanio and Ana Flooks (one assist) scored one apiece. Rhemi Toth added an assist.
Kristin Caolo made nine saves in goal for top-seeded Weston, which will play the winner of the Bethel/Lauralton Hall semifinal game for the championship on Thursday at home at 7 p.m.