The Winthrop Ramblers charge their teammates on the court in celebration of their 61-49 victory over Houlton in the boys class C state championship game at the Cross Insurance Center in Bangor in 2019. Credit: Linda Coan O'Kresik

The first-seeded Winthrop boys basketball team will advance to the semifinals after defeating No. 9 Monmouth Academy 53-24.

The defending C South champions will improve to 18-1. Monmouth Academy will finish with an 11-9 record.

Winthrop will play the winner of No. 4 North Yarmouth Academy and No. 5 Richmond on Wednesday, Feb. 19 at 8:30 p.m. at the Augusta Civic Center.