Coleraine 1-0 Ballymena Utd
Leon Knight struck with three minutes left to give the Bannsiders a deserved derby win in the Carling Premiership.
David Ogilby headed over as Coleraine took control but the hosts failed to make their dominance count.
Ballymena rarely threatened but their determined defending included a goal-line clearance from Liam Watson.
United keeper Wayne Drummond was at fault for the goal, failing to hold a high ball and substitute Knight pounced to stab home from two yards.