Tenth-seeded Ellsworth moved on to the Cross Insurance Center with a 35-33 Class B North preliminary victory over No. 7 Mount Desert Island of Bar Harbor.
The Eagles (11-8) earned the right to play No. 2 Waterville (17-1) in Friday’s 5 p.m. quarterfinal in Bangor.
The Trojans finish their campaign with a 11-8 record.