Wellington snapped an eight-game winless streak in the A-League after a late goal to Jaushua Sotirio gave them a 2-1 victory over Central Coast.
Sitting at the bottom of the ladder going into Sunday's clash, Phoenix extended their impressive six-game winning streak against the Mariners.
Their stranglehold over the Central Coast side now is the longest winning streak in club history against a single opponent, equalling their six-game run against Newcastle from 2010 to 2012.
In miserable weather at Central Coast Stadium, the Nix outlasted the in-form Mariners who looked in control for most of the match until Sotirio got his boot to a bouncing ball from Alex Rufer in front of the net.
The Nix scored early through Ulises Davila, who darted through soft defence outside the box and slotted in the opening goal after 14 minutes.
However, it didn't take long for the Mariners to respond as they ramped up the intensity through the centre field.
Teenage striker Alou Kuol finished off a set piece from a corner, heading in a goal from in front just before halftime to level the scores.
From there, the Mariners looked firmly in control of the game but several shots on goal were sent wide, leaving them without the three points they needed.
Meanwhile, Mariners skipper Oliver Bozanic bravely battled through the second half after dislocating his shoulder just before halftime.
In agony on the sideline, it was assumed he wouldn't return but he managed to finish the match.
It's likely he will be in doubt for the game against Melbourne City on Wednesday night.
It's the second of three games in seven days in Gosford for Alen Stajcic's men, who will also play Western United next Sunday to round off a tough stretch of football.
Meanwhile, the Phoenix will now have a week off before playing Sydney FC in Kogarah next Monday night.