St Ronan's Lurgan caused a major MacRory Cup upset on Saturday when they beat St Colman's Newry 1-13 to 1-10 in the quarter-final at Burren.
Ronan's join St Pat's Maghera outfit in the last four after the Derry school beat Omagh CS 2-8 to 1-9 on Friday.
The other quarter-finals scheduled for Sunday at Inniskeen were postponed because of a waterlogged pitch.
St Patrick's Bessbrook were down to face St Michael's Enniskillen with St Pat's Cavan against St Pat's Dungannon.
The latter game is a repeat of last year's final when the Cavan outfit earned a 2-12 to 0-8 victory.
However, Dungannon will probably go into the game as favourites to progress to the last four.
St Patrick's Maghera won the opening MacRory Cup quarter-final as they edged out Omagh at Emyvale.
Omagh appeared in control as an Oran Sludden goal helped them take an early 1-5 to 0-2 lead.
However, Conal Darragh's goal contributed to Maghera levelling by half-time and Patrick Quigg's three-pointer helped them edge the victory.