Emma Gallant scored two of her three goals in the first half as the Stags took a 3-1 lead in an opener at Portland.
Gallant, who assisted on Cheverus’ other two goals, fed Lauren Jordan for a header and a 1-0 lead after three minutes. Gallant then sandwiched unassisted goals around Hattie Tetzlaff’s score for South Portland to make it 3-1. Mackenzie Farnham assisted on Tetzlaff’s goal.
Gallant and Mia Kratzer notched second-half goals for Cheverus.
Cheverus keeper Neve Cawley had three saves. Maria Buck stopped 11 shots for the Red Riots.