Rockingham City have secured a place in the NPL night series semi-finals after a 4-1 win over ECU.
Lydon Hodgkiss opened the scoring for City with a superb long range shot from 30-yards out from goal.
Rockingham doubled their lead when Jason Constable found Riley Van Dieken who slotted the ball into the back of the net.
Van Dieken was at it again a short time later curling the ball into the top right hand corner.
A late own goal from ECU made matters worse before scoring one of their own against the run of play but all too late.
Rockingham are likely to play Floreat Athena who finished top of Pool 2 for a spot in the final.