The Black Caps are purring but Australia are scratching around in one-day international cricket after losing to England in Brisbane on Friday.
Since last year's Chappell–Hadlee series in New Zealand, which the Black Caps won 2-0, Australia have won just one ODI from eight completed games and face a series defeat to England with the tourists leading 2-0 with three matches to play.
Australia have also suffered 15 defeats from their last 22 completed ODIs.
New Zealand on Friday secured their first 5-0 clean sweep in an ODI series since 2000 after beating Pakistan, last year's winners of the ICC Champions Trophy, in Wellington.
The Black Caps had just swept the West Indies 3-0 and have impressively won their last eight ODI matches since losing 2-1 in their three-match series against India in October.
Australia have played 11 ODIs - winning one, losing eight, with two no results - since losing to New Zealand last summer, while the Black Caps have played more than double - 23 - and won 14, lost eight, with one no result.
Since New Zealand regained the Chappell–Hadlee Trophy with a 24-run victory at Seddon Park last February, they have also lost 3-2 in a series against South Africa, beaten Ireland twice, won and lost against Bangladesh, and failed to win any match during a disappointing campaign in last year's Champions Trophy when finishing bottom of a group including hosts England, Bangladesh and Australia.
Australia, too, failed to progress from the group stages of the tournament in England, but were unlucky due to two matches being washed out by rain, and lost their only completed match against England.
But if you add their two defeats to New Zealand in the last Chappell–Hadlee series, Australia have won just one of their last 10 ODI matches, their worst ever 10-game sequence in the 50-over game.
The reigning world champions are facing a third successive ODI series loss as England need just the one more victory to win the series to regain some pride after losing 4-0 in the Ashes.
After a flurry of Twenty20 matches, which include a three-match series with Pakistan and a Trans-Tasman Tri-Series with England and Australia, the Black Caps welcome England to New Zealand, starting with five ODIs before two tests.
New Zealand have so far won 12 successive matches in all forms this summer and their ODI form means they're now third in the ICC rankings behind South Africa and India in first and second respectively.
England are fourth and above Australia in fifth, while Pakistan have slumped to sixth after being whitewashed by the Black Caps.
New Zealand and Australia's ODI records since last Chappell–Hadlee series
Played 23: won 14, lost 8, one no result.
Lost 3-2 v South Africa
Won Tri-Series against Bangladesh and Ireland
Group stages of Champions Trophy (no result v Australia, losses v England and Bangladesh)
Lost 2-1 v India
Won 3-0 v West Indies
Won 5-0 v Pakistan
Played 11: won 1, lost 8, two no results.
Group stages of Champions Trophy (No results v New Zealand and Bangladesh, lost v England)
Lost 4-1 v India
Losing 2-0 v England in five-match series