Holders RBAI will host Sullivan in the last eight of this year's Danske Bank Schools' Cup.
Dan Soper's boys saw off his former school Ballyclare High 17-0 to book a spot in the quarter-finals stage.
Elsewhere, RS Armagh dominated their tie against Cambridge House, earning a 45-0 away win.
Danske Bank Schools' Cup quarter-final draw:
Campbell College v Ballymena Academy
RBAI v Sullivan Upper
Wallace High School v Royal School Armagh
Methodist College v Bangor Grammar School
Danske Bank Schools' Cup round four results
Enniskillen Royal 10-28 Ballymena Academy
Bangor GS 12-3 Rainey Endowed
RS Dungannon 5-38 Wallace HS
Campbell College 41-0 Dalriada
Cambridge House 0-45 RS Armagh
Sullivan Upper 20-13 Down HS
RBAI 17-0 Ballyclare HS
Coleraine GS 3-38 Methodist College