Victoria's latest COVID lockdown has created further fixture chaos in the A-League but everything is going swimmingly for Central Coast.

While the five-day statewide lockdown led to both of Saturday's matches involving Melbourne teams being postponed, the Mariners' claimed a sixth win from eight to stay top of the league.

Goals to club favourite Matt Simon and captain Oliver Bozanic were enough for the Mariners - wooden spooners in the past three seasons - to score a 2-0 win away to Wellington Phoenix in Wollongong on Sunday.

With Melbourne City's trip to Western Sydney called off and Western United's home game against Sydney FC also postponed by Victoria's lockdown, the Mariners are one of just three teams to have completed eight matches.

Sydney's clash with City, originally slated for Tuesday, and Wellington's trip to play Melbourne Victory the following day, have also been affected with league bosses announcing on Saturday both games had been pushed back a week.

Central Coast's nearest rivals are newcomers Macarthur FC who capped a fine week with their first win at home in a 4-0 hammering of Adelaide at Campbelltown Stadium on Friday.

Matt Derbyshire's hat-trick was the highlight for the Bulls, who claimed seven points from three games inside seven days.

The only other team to have played a full eight matches is Newcastle, who extended their unbeaten run to four games with a backs-to-the-wall effort against Brisbane in a 0-0 draw at Redcliffe on Sunday.

In contrast to the Mariners, Macarthur and Jets, three teams - Sydney, Perth and Western United have only completed five matches so far in a stop-start opening to their campaigns.

Mariners coach Alen Stajcic admitted the fixture uncertainty wasn't ideal but felt the COVID disruption of 2020 had given clubs valuable lessons in adaptability.

"Last year was a bigger hit to our psyche," Stajcic said.

"I think this year everyone (all the clubs) is starting to adapt.

"Everyone is finding a way to do things they wouldn't normally do, so regardless if you play two or three (matches) in a week, everyone has to find a way to be successful."

The various postponements mean the league's next fixture will be the Mariners' trip to Adelaide on Friday as they look to continue their excellent form.