Melbourne Victory endured a late collapse as Matt Simon scored two penalties to help Central Coast Mariners to three points in the A-League.
A 2-1 win over Adelaide United on Saturday extended Sydney FC's lead over Melbourne City at the top of A-League.
Perth Glory's good form continued with a convincing victory away to Central Coast Mariners on New Year's Eve.
Adelaide United missed a chance to go third in the A-League, losing 2-1 to Central Coast Mariners in Gosford.
Western Sydney Wanderers and Melbourne Victory sit outside the top six after poor showings on Saturday, but Sydney FC are on the march.
Newcastle Jets outlasted Western Sydney Wanderers, while Brisbane Roar were too good for Central Coast Mariners in the A-League.
Giancarlo Gallifuoco scored as A-League strugglers Central Coast Mariners defeated Western United 1-0, ending a long wait for a clean sheet.
Newcastle Jets and Adelaide United secured valuable A-League away wins over Western United and Central Coast Mariners, respectively.
A-League leaders Melbourne City moved three points clear in first after comfortably accounting for Central Coast Mariners.
Melbourne City moved top of the A-League on Sunday, while Central Coast Mariners registered their first win of the new season.