Morton got back level 13 minutes from the end when Stewart Greacen slid in to prod home a loose ball in the box.
BBC: Morton 2-1 Ayr United
2.
The visitors, without cup-tied defender Stewart Greacen, were on top when the game drew to a close and twice hit the woodwork in the second half.
BBC: Stranraer 1-0 Forfar Athletic
3.
Morton drew level when Dominic Shimmin's high cross caused confusion in the Ayr penalty box, and Greacen poked the loose ball in off the post from 12 yards.