Australia have been too strong once again for the White Ferns in their third and final ODI with a comprehensive 75 run victory at the Basin Reserve.
Australia chose to bat and quickly piled on the runs with openers captain Alyssa Healy and Phoebe Litchfield posting an 88-run opening partnership at over six runs an over.
Amelia Kerr and Rosemary Mair, who picked up two wickets each between the 15th and 22nd overs tried to hold off the visitors, but it was difficult.
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Australia had Annabel Sutherland scoring 42, and Ashleigh Gardner combined for a 73 run partnership for the fifth wicket.
Gardner eventually made 74 from just 62 balls, before finally being bowled by Kerr.
The allrounder finished the best of the Kiwi bowlers, taking four for 54 from her 10 overs, while Mair took finished with three for 58 off her 10.
New Zealand claimed a morale victory by bowling out Australia with the last ball of the 49th over, but Australia had racked up 290 by then, which was to prove too challenging for the home team.
Opener Suzie Bates top scored with 53 from 59 balls, the 49th time she has passed 50 in ODIs.
But once captain Sophie Devine was bowled by Darcie Brown for 25 - the fourth wicket to fall - the required run rate was already at a steep seven runs an over, and New Zealand were not able to offer a comeback.
The top six of the White Ferns order all passed 20 runs, but only Bates and eventually Maddy Green with 39 made it past 30 runs.
Bella James was out for 24, Kerr 22 and Brooke Halliday 27.
Sutherland, who was player of the match and the series, and Alana King were the best of the Australian bowlers taking three wickets each, as New Zealand was dismissed for 215 in the 44th over.
New Zealand last held the trophy in 1999.