Donegal Celtic recorded only their second Premiership win of the season with Shane Dolan getting the decisive strike at home to Ballymena United.
Dolan scored with a cracking drive from about 12 yards in the 38th minute after Mark Miskimmin had done well to shield the ball to set the goal up.
Ballymena, recent winners of the County Antrim Shield, felt unlucky when David Cushley had a goal ruled out.
Cushley headed in but the whistle went for a foul on keeper John Connolly.
Just before half-time, Ballymena's Tony Kane hit the post with a free-kick from 25 yards.
In the second half Donegal Celtic's David McAllister had a shot tipped over by United keeper Stuart Addis.