Portadown 2-1 Glentoran
The Ports moved up to second in the Carling Premiership thanks to Matthew Tipton's last-gasp winner.
Ciaran Martyn put the visitors ahead on 15 minutes when his defelcted shot flew past keeper David Miskelly.
Tipton was denied by the woodwork just before the break but the striker hit the net with 15 minutes left when he finished from Keith O'Hara's cross.
The hosts clinched a deserved win in the final minute with Tipton stabbing in from Brian Gartland's header.