The doubles tandems of Esha Bhalla/Mia Lock and Avery Machemer/Cate Sheehan won their matches to help guide No. 8 Winchester (18-3) past top-seeded Boston Latin 3-2 in a Div. 1 girls tennis quarterfinal.
The other point for the Red and Black came at first singles, where Daryana Skobeleva defeated Halina Nguyen, 6-2, 7-6 (5).
In the Div. 1 tournament, Nick Emsing paced his team with a hat trick as top-seeded BC High (18-3) advanced to the semifinals with a 10-3 win over No. 8 Bishop Feehan.
Jill Martin scored four goals and provided an assist, while Katherine Morin netted two goals as No. 4 Chelmsford (18-4) topped No. 5 North Andover 8-6 in a Div. 1 quarterfinal.
Avery Regan led the way with six goals and two assists, while Reese Hansen added four scores as No. 1 Cohasset (20-2) rolled