The heavy overnight frost on Friday evening put paid to all of Saturday's Northern Bank Schools' Cup quarter-finals.
They have all now been re-scheduled for Wednesday — Methodist College v Ballyclare (Pirrie Park 1.30pm), Ballymena Academy v Friends' School (Ballymena 2.30pm), Wallace High v Regent House (Lisburn 3.00pm), Belfast Royal Academy v Dalriada (Roughfort 3.00pm)
The Northern Bank Subsidiary Shield quarter-finals will also be played on Wednesday — RBAI v Campbell College (Osborne Park 3.00pm), Limavady Grammar v Portora Royal (Limavady 2.30pm), Armagh RS v Sullivan Upper (Armagh 2.30pm).
The Coleraine AI v Omagh Academy tie has still to be finalised.
The Schools' Bowl final at Ravenhill on Wednesday will be between Grosvenor Grammar and Foyle/Londonderry College.
The final of the Schools' Bowl between Portadown College and Cambridge House is scheduled for Ballymena this afternoon.