A powerful performance from Australia led to a 20-14 victory over England at Twickenham, with Berrick Barnes kicking 15 points.
In front of a packed crowd at Twickenham, England opened the scoring with a penalty from Toby Flood with two minutes gone, but it was Australia who held the edge early on in terms of territory and possession.
The Wallabies were on top in the opening scrums and it proved to be the foundation for Australia's first score of the afternoon as Michael Hooper burst through on the left hand side, Berrick Barnes eventually sending through a drop-goal from straight in front.
Australia continued to play with width, Nick Cummins giving the English defence cause for concern as he continued to find space down the right wing.
Flood put England back in front with a long-range penalty but Australia responded by putting the home side under pressure deep on their own try line, the TMO ruling out a score after looking at numerous replays.
A penalty at the resulting scrum however led to Barnes levelling the scores from straight in front, but Flood responded to take the score to 9-6.
Cummins then grabbed the first try of the afternoon after a poor box kick from Danny Care led to a break from Australian scrum-half Pat Phipps, who slipped through a gap in England's defence and fed an unmarked Cummins for the score.
It was England however who had grabbed the final points of the first half, a tapped penalty by Care putting Australia on the back foot before the ball went wide to Manu Tuilagi.
The Leicester centre dived and allegedly did enough to ground the ball on the line, putting England back in front and leaving the score at 14-11 at half-time.
Barnes drew both teams level at the start of the second half and then put the Wallabies in front after a perfectly weighted chip behind the defence from Beale was gathered by Hooper, leading to another penalty kick to give Australia a 14-17 lead.
The Wallabies regained possession from the restart and a break from Tapuai almost released Cummins on the outside again only for Sharples to intervene. Australia's dominance at the breakdown resulted in England being penalised, with Barnes stretching the visitors lead to six points.
An English response was needed and it came with a powerful surge towards the Australian try-line, the hosts launching a series of driving mauls towards the Wallaby line, Thomas Waldrom going close but knocking on as he dived for the score.
The home crowd did their best to lift England's performance but the error count continued to rise as Australia controlled the breakdown and the scrum, winning yet another penalty which Barnes failed to convert from long-range.
A tapped penalty from replacement Ben Youngs brought the crowd to their feet as England persisted to go for the try rather than taking the points on offer, but Australia again turned over possession, stifling England's momentum.
It was a similar story for the rest of the second half as Australia dominated the breakdown, repelling a series of attacks from the home side deep into their own 22 but emerging on top on every occasion, to clinch an important victory for coach Robbie Deans.
Man of the match: Who needs David Pocock? Openside Michael Hooper had a fine afternoon.
Moment of the match: After sustained pressure, Thomas Waldrom just couldn't get the ball down.
Villain of the match: Not a memorable afternoon for Joe Marler at the scrum, the Harlequin struggling against Ben Alexander.
The scorers:
For England:
Try: Tuilagi
Pens: Flood 3
For Australia:
Try: Cummins
Pens: Barnes 4
Drop Goal: Barnes
England: 15 Alex Goode, 14 Chris Ashton, 13 Manu Tuilagi, 12 Brad Barritt, 11 Charlie Sharples, 10 Toby Flood, 9 Danny Care, 8 Thomas Waldrom, 7 Chris Robshaw (c), 6 Tom Johnson, 5 Geoff Parling, 4 Tom Palmer, 3 Dan Cole, 2 Tom Youngs, 1 Joe Marler.
Replacements: 16 David Paice, 17 David Wilson, 18 Mako Vunipola, 19 Joe Launchbury, 20 Tom Wood, 21 Ben Youngs, 22 Owen Farrell, 23 Mike Brown.
Australia: 15 Berrick Barnes, 14 Digby Ioane, 13 Adam Ashley-Cooper, 12 Ben Tapuai, 11 Nick Cummins, 10 Kurtley Beale, 9 Nick Phipps, 8 Wycliff Palu, 7 Michael Hooper, 6 Dave Dennis, 5 Nathan Sharpe (captain), 4 Sitaleki Timani, 3 Ben Alexander, 2 Tatafu Polota Nau, 1 Benn Robinson.
Replacements: 16 Stephen Moore, 17 James Slipper, 18 Sekope Kepu, 19 Radike Samo, 20 Liam Gill, 21 Brett Sheehan, 22 Mike Harris, 23 Drew Mitchell.
The world champions led from start to finish to maintain their perfect record against Italy, who put up a solid challenge in the first half but ultimately couldn't match the visitors' attacking firepower.
Samoa sent Six Nations holders Wales crashing to their fifth consecutive loss after the visitors secured a 26-19 win at the Millennium Stadium on Friday.
In spells it was a performance that showed once again why the All Blacks are considered the finest exponents of attacking rugby in the game. It also backed up the importance of all players - from 1 to 15 - being comfortable in any position as forward duo Luke Romano and Wyatt Crockett proved.
Both sides conceded penalty tries in a three-minute span, Romania deliberately collapsing a maul, and Japan collapsing a scrum, to leave Japan leading by one with eight minutes to go.
The result brings an end to Australia's five-game winning streak against les Bleus and puts France in pole position in the chase for the all-important fourth place in the world rankings ahead of the World Cup pool draw next month.
In a tale of two halves, Ireland looked on course for a famous win after leading their visitors 12-3 at half-time.
Following an early blip whereby the islanders held the upper hand, England clicked into gear to claim a seven-try win that will please Stuart Lancaster.
When Wales had possession they were guilty of forcing passes, and their high error-count merely played into Argentina's hands. The only positive note for a disjointed home team was that they were in front approaching the last quarter of the match.
Italy warmed up for the visit of two heavyweights in the coming weeks with an unconvincing win over a feisty Tongan side.
The Americans ran in six tries to build a commanding lead by the hour mark but let their intensity drop in the final quarter to allow the Russians to bring a semblance of respectability to the scoreline.
The Pacific Islanders dominated from the start, scoring five tries — including four for debutant wing Robert Lilomaiava — to cruise into a 42-0 lead.
In a performance worthy of their status as the top-ranked team in the world, New Zealand weathered an early storm to overturn a half-time deficit and eventually run out comfortable winners.
Though honours were shared by the trans-Tasman rivals, Australia will treat this result as a mental victory seeing that Robbie Deans' troops weren't given a chance in hell of matching the All Blacks prior to kick-off.
It wasn't pretty but one feels the Wallabies won't mind that as the success supersedes a forgetful period of injuries and off-field issues (hopefully).
The All Blacks produced their best performance of the year to demolish los Pumas, scoring seven tries including a hat-trick for Cory Jane and two for his fellow wing Julian Savea.
The Springboks led 14-3 at the interval but the Wallabies were lucky not to be much further behind. Two tight calls from the TMO meant the home side did not have the four-try bonus point by half-time, but Heyneke Meyer's men secured a full house of points after the break as Bryan Habana bagged a hat-trick to add to earlier scores from Zane Kirchner and Francois Louw.
The All Blacks, unbeaten in 14 Tests, outscored the Springboks two tries to one for a win that sees them take a commanding lead in the competition.
The Pumas looked on course for a famous win after two quick-fire tries saw the tournament newcomers lead 19-6 with just over a quarter of the match remaining.
The world champion All Blacks, number one in the world and undefeated since beating France in the RWC final last year, were hanging on the ropes for three quarters of the match until two quick-fire tries secured a hard-fought win.
Both sides desperately needed a win to have any chance of catching the All Blacks in the race for the trophy, and were under pressure to deliver.