The Australian girls, led by a strong contingent of the Queensland team that beat the North Island girls in straight sets on Friday, dropped only one set in claiming the girls' test (25-23, 25-18, 22-25, 25-20).
The visitors were near-flawless in the opening two sets, forcing their Kiwi counterparts to hit from tough positions against a set defence.
The Kiwi girls did well to rally from eight points down to win the third set.
However, their opponents had too much height and power on the front line to be seriously challenged.
Bay of Plenty Volleyball administrator Maria Woods was glad the tournament had been such a success.
"We've got players from high-performance camps and high-performance programmes, choosing to play this," she said.
"So it's great to have a competition like this in town."
Woods did not think scouts from American universities had been in attendance, saying players instead compiled videos and posted them online.
Female players had a far better chance of gaining a scholarship than their male counterparts due to rules in America ensuring the same number of scholarships were offered to both sexes.