The Sydney derby went the way of the West as the Wanderers got the better of Sydney FC 2-0.
Ian Crook's side remain rooted to the foot of the table as a result - their miserable campaign continuing.
Marquee signing Alessandro Del Piero continues to struggle to make an impact, being booked in a 21-minute cameo from the bench.
By that point Youssouf Hersi had given the Western Wanderers a 24th-minute lead, with Michael Beauchamp making things safe 13 minutes from time.
The Brisbane Roar are a point better off than Sydney, having earned a credible 1-1 draw at Melbourne Victory.
Ben Halloran put the Queenslanders ahead midway through the first half, but Mark Milligan cancelled it out four minutes after half-time.
Information from Press Association was used in this report.