The Matildas doubled their lead in the 24th minute when Hayley Raso intercepted a Ferns pass at the back and fired into an empty net for 2-0, a score that remained to halftime. With 70 minutes played, the game was still within reach for the Ferns, who had looked dangerous from set pieces, but a flurry of quick goals put the result beyond doubt.
A misplaced clearance was pounced on by Ellie Carpenter, who finished easily for 3-0.
A minute later it was four, courtesy of a stunning long-range strike from Kyra Cooney-Cross. After the Matildas won the ball back in midfield, Cooney-Cross spotted Anna Leat off her line and took her chance from more than 35m, lifting the ball over the keeper with a precise lob.
It was five in stoppage time as Katrina Gorry arrived unmarked to turn in a cross for her first of the match.
Despite the scoreline, Leat impressed on her return and prevented a sixth goal late on when she saved a penalty from Steph Catley.
In the dying moments, the Ferns had their best opportunity of the match when substitute Gabi Rennie broke free, but her effort was cleared off the line, denying a late consolation.
There will be plenty for the Ferns coaching staff to take from the performance as they look to respond in Tuesday’s second match in Adelaide.