NatWest Challenge, Lord's: Australia 224-3 (44.2 overs) beat England 223-8 (50 overs) by seven wickets
Captain Ricky Ponting hit a century to ease Australia to a seven-wicket triumph over England at Lord's in the NatWest Challenge one-day match.
Ponting (111) shared a third-wicket stand of 120 with Damien Martyn, who was 39 not out as his side reached a target of 224 with six overs remaining.
Earlier, man of the match Brett Lee took 5-41 to restrict England to 223-8.
Andrew Flintoff hit 87, his highest score against Australia, in a 103-run stand with Paul Collingwood (34).
After six one-day games between these two Ashes rivals so far this summer, and with one to play at The Oval on Tuesday, results are split 2-2 with one tie and a washout.
Australia were in the box seat after taking three early wickets in successive overs, Mike Kasprowicz taking two of them, to leave England 28-3.
Kevin Pietersen missed a golden chance to impress when he fell to Lee, dragging on for 15, and the home side were in even deeper trouble.
Australia showed no such early difficulty as the first four overs went for 32 runs, with Adam Gilchrist taking six boundaries off Darren Gough and Simon Jones.
Gough took out the left-hander's off stump in the first over, only to realise he had over-stepped for a no ball.
By the time he edged Flintoff behind in the sixth over, Gilchrist had put England on the back foot with 29 from 20 balls.
Katich, who opened the innings because Matthew Hayden was nursing a sore shoulder, failed to capitalise on his patient start, but Australia were already on course when he fell for 30.
England made full use of the new "powerplay" rules, mixing in the mandated blocks of five overs with a close field throughout the innings.
But the only real effect of them was to allow Ponting to make quick runs when well set, most obviously with a six off Flintoff and 11 from an over off Harmison.
He used an intentional edge off Harmison from the 105th ball faced to gain his 13th boundary and tie Mark Waugh's record of 18 one-day tons for Australia.
It was a welcome return to form for the batsman, whose previous best against England this summer was 34.
Neither "supersub" was used, with England's Vikram Solanki superfluous once the hosts lost the toss, although he fielded as an old-fashioned 12th man.
Lee returned the best one-day figures by an Aussie at Lord's
Aussie Brad Haddin nominally replaced Glenn McGrath in the fourth over of the reply but was not needed to bat.
When it came to powerplays, Australia simply kept a tight field for the first 20 overs.
Regularly bowling at over 90mph, Lee completed his fourth five-wicket haul in his 111th game at this level.
Collingwood was his second wicket, edging behind after a partnership that spanned 22 overs in the middle of the innings.
Flintoff played the lead role in the stand but was unusually subdued, with a little swing on offer for the better bowlers.
However, he did manage to launch two sixes into the Grandstand, an out-of-form Jason Gillespie one victim and Andrew Symonds the other late on.
The arrival of Geraint Jones failed to bring the required acceleration in the face of some tight late bowling from Kasprowicz and Symonds.
And Flintoff had little choice but to go for the slice that saw him caught at deep cover with three overs remaining.
Lee completed his trick by having Jones caught at deep midwicket and Ashley Giles taken by Ponting, making a brilliant diving catch at extra cover.