The NatWest Women's Series
Australia Women 225-7 (S Nitschke 71, K L Rolton 52) v England Women 226-8 (C M Edwards 65, L S Greenway 50, S Andrews 4-57)
England Women beat Australia Women by 2 wkts
England women chased down a target of 226 from the final ball to claim a two-wicket success over Australia women in the fourth one-day international.
Charlotte Edwards (65) and Lydia Greenway (50) both struck half-centuries as England recovered from 78-4 to earn a thrilling victory.
The run out of Edwards sparked a collapse that saw the hosts lurch from 191-4 to 209-8 before Laura Marsh and Holly Colvin came to the rescue.
The ninth-wicket pair shared an unbroken stand of 17 to see England home, Marsh hitting two fours in a run-a-ball 14 and Colvin contributing eight off seven deliveries.
Australia pace spearhead Sarah Andrews finished with figures of 4-50.
Earlier, Shelley Nitschke and Karen Rolton were among the runs as the tourists piled up 225-7 after opting to bat first at Sir Paul Getty's Ground in Wormsley.
Yorkshire seamer Katherine Brunt (2-38) removed Leah Poulton and Alex Blackwell for ducks in the first over to put Australia in trouble at 0-2.
But opener Nitschke rescued her side with 71 off 106 balls and Rolton added 52 off 83 deliveries to ensure a competitive total.
England lead the five-match series 4-0 and have the opportunity to complete a whitewash at Lord's on Tuesday.