New Zealand coach John Hart has vowed to continue through to next year's World Cup despite overseeing the worst season in 50 years of All Blacks history.

New Zealand lost 19-14 to Australia on Saturday to give the Wallabies a three-nil result in a Bledisloe Cup series for the first time since 1929.

Hart, visibly shaken at Saturday's loss, rejected suggestions in an Australian newspaper that he would resign "if it was in the interests of New Zealand rugby".

"I expect I'll get a lot of criticism. There's not much you can do about it," he told the New Zealand newspaper, the Sunday Star-Times. "Mistakes were made and they were simple things that just went wrong. In the end I'm very committed to the job and that's what you've got to be."

New Zealand Rugby Football Union chief executive David Moffett said before Saturday's match in Sydney that, whatever the result, Hart would have the full support of the NZRFU. The All Blacks also lost two matches against South Africa to come last in the Tri-Nations tournament.

While Hart was disappointed over the refereeing on Saturday, he also voiced anger for the first time at the All Black performance, hinting some players had slipped below acceptable standards.

The NZRFU has turned down a £6 million offer for an exhibition match against the Springboks in the United States later this year, citing player burnout as the reason, the Sunday News reported.