Australia began the ICC U19 Cricket World Cup title defence with a six-wicket win over England in Townsville on Saturday.
Chasing a modest total of 144, the host nation were rocking at 54-4 as England quicks Reece Topley (2-33 off 10 overs) and Jamie Overton (2-34 off eight) ripped through the top order.
But Travis Head (57 not out) and Will Bosisto (35 not out) came to the rescue as Stuart Law's side kicked off the tournament with a victory at Tony Ireland Stadium.
Australia's chase started poorly as openers Jimmy Peirson (zero) and Cameron Bancroft (two) were dismissed in the first four overs.
Peirson was bowled by a brilliant Topley yorker that split middle stump in two while Bancroft edged Jamie Overton to twin brother Craig at first slip.
Meyrick Buchanan (16) and Kurtis Patterson (19) looked to have stopped the rut but the former threw away his wicket on the stroke of lunch, spooning a catch to mid-wicket as Australia headed into the break at 30-3.
Patterson was the next to be dismissed – in almost an exact replica of Bancroft's dismissal - as Australia were under serious pressure.
Head and Bosisto stood up when required though, compiling a terrific 93-run partnership in just over 22 overs.
Head was the aggressor, hitting six fours and one six in his 58-ball knock while Bosisto played a far different role – he faced 87 deliveries and hit just one boundary - but one that was equally as important as he held up an end.
Earlier, left-armer Joel Paris (2-35 off 10) vindicated Australia's decision to bowl first immediately as he removed Daniel Bell-Drummond for a duck, trapping him lbw with the fifth ball of the England innings.
And another wicket fell just three deliveries later as Ben Foakes (two) shouldered arms to a Mark Steketee (2-35 off nine) delivery that swung in late and clipped off-stump.
Opener Alex Davies (18) and Craig Overton (35) combined for a patient 34-run partnership but just as they had steadied, the former edged a sharp lifting delivery from Steketee to wicketkeeper Peirson.
Both Paris and Steketee did a terrific job at the top of the innings but it was the performance of Gurinder Sandhu (3-27 off 9.3) that really stood out.
Sandhu bowled with genuine pace and troubled the English batsmen, removing Aneesh Kapil (14) and then Craig Overton, both caught behind by Peirson.
Spinner Ashton Turner (3-30 off seven) also chipped in and he was on a hat-trick after dismissing Ben Duckett (15) and Simon Wood (zero) with successive deliveries.
Adam Ball (20 not out) and Jamie Overton (14) added 29 for the eighth wicket but Turner dismissed the latter when he was caught in the deep by Sandhu, who alongside Paris snared late wickets as England were dismissed for a score that did not prove enough.