Substitute Bruce Kamau scored twice in the space of four minutes for Western Sydney, but they were unable to hold on for victory.
Melbourne City beat Wellington Phoenix 3-2 and Newcastle Jets lost 1-0 to Western United in Monday's A-League action.
Kosta Barbarouses scored one and assisted another against former side Melbourne Victory as Sydney FC eased to a 3-0 win on Sunday.
Brisbane Roar battled to a draw with Western Sydney Wanderers but an A-League victory is proving elusive.
Matt Derbyshire and Macarthur are enjoying a fine start to life in the A-League, with the striker at the double in their latest win.
Young goalkeeper Joe Gauci made two impressive penalty saves, but Adelaide United's winning run ended with defeat to Central Coast Mariners.
Benat and Markel Susaeta spoke to Stats Perform News about Athletic Bilbao's Copa del Rey finals against Real Sociedad and Barcelona.
Craig Goodwin's 76th-minute penalty was enough for in-form Adelaide United to triumph again in the A-League on Sunday.
Leaders Central Coast Mariners were held by Melbourne Victory and Perth Glory saw off Newcastle Jets 2-1 in Saturday's A-League action.
Craig Noone scored twice and set up another goal as Melbourne City won for a sixth A-League game running.