The result comes as a big downer for Victory who were riding high following a 3-1 win over Western Sydney on Tuesday but have been brought down to earth with a crashing thud.
As the result would suggest, Wellington Phoenix were completely dominant with Carlos Hernandez and Kenny Cunningham using their experience together with Costa Rica to tear Victory apart.
The floodgates opened in the 21st minute with Tyler Boyd fooling his defender and sending Hernandez through, allowing him to score his first goal in open play for Wellington.
Victory managed to contain Wellington well for much of the half but in stoppage time it was Cunningham who hit an incredible strike from distance to make it two.
There was still one more goal in stoppage time as Victory gave up a penalty allowing their former team mate to step up and score from the spot, Hernandez sealing his brace and giving Wellington a 3-0 half time lead.
The second half saw Melbourne Victory step up their defensive performance but still struggled to have any real impact in the match with Wellington still dominant.
Just five minutes in to the half there was a surprise as Ernie Merrick took off the inform Hernandez to bring on Matthew Riddenton, looking to develop the 17 year-old's career.
Kosta Barbarouses was the bright spark for Victory, coming the closest to providing anything as he crossed for Archie Thompson, only for Glenn Moss to rush out and gather the ball.
Jeremy Brockie came on in the 80th minute, and put an end to his disappointing form as he made his impact felt almost instantly.
Five minutes after coming on, Brockie broke through to score a much needed goal for himself, giving Wellington a 4-0 lead.
Two minutes later Brockie turned provider as he found Steyn Huysegems allowing him a simple finish to complete the 5-0 rout.