Sophia Monfa scored in the first half and Finley Brown and Annie Vigue added second-half goals as fifth-seeded Cheverus blanked 12th-seeded Marshwood, 3-0, in a Class A South girls’ soccer prelim Friday in Portland.

The Stags (10-3-1) advance to meet No. 4 seed Thornton Academy in the quarterfinals at 6 p.m. Tuesday.

Monfa scored with an assist from Vigue just before halftime.

Brown’s goal came on a penalty kick. Vigue then scored a clinching goal, assisted by Brown.

Evelyn Rush stopped four shots for the Stags.

The Hawks (5-10) got eight saves from Lana Emery.