Coleraine 3-1 Donegal Celtic
Donegal Celtic have secured their Premiership status despite losing at the Showgrounds.
Newry City were confirmed in bottom spot after their 4-0 defeat to Glenavon on Tuesday.
Paul McVeigh's early header put DC ahead but Leon Knight levelled on 34 minutes with a backpost header.
Johnny Harkness made it 2-1 from a penalty after Knight was fouled by Darren McNamee and Gareth Tommons' fired home to seal the victory.