The Hockeyroos have moved three points clear at the top of the Tri Nations table after recording a 4-1 win in over Japan on Monday.
Australia's women's side, who also defeated hosts New Zealand 4-1 on Sunday, were too strong for the Japanese, moving to six points from two games ahead of Tuesday's rest day.
Rosie Malone, who was elevated to the Hockeyroos squad last week, scored her maiden international goal in the first minute, but Japan levelled before quarter-time in Cromwell.
Similar to Sunday's win, Australia restored their lead just before halftime through Kalindi Commerford before second-half goals from Brooke Peris and 50-gamer Renee Taylor sealed the win.
Australia are next in action on Wednesday against the Black Sticks.
With six points from two games, the Hockeyroos are sitting clear of Japan (three points) and New Zealand (zero points).
Japan and New Zealand meet on Tuesday.
