England's beaten Australia by four wickets at the Rose Bowl in Hampshire in the first one day international.
Eoin Morgan hit an unbeaten 103 to steer England to their target of 268 with four overs to spare after they had lost four early wickets chasing Australia's 267 for seven.
Michael Clarke made an unbeaten 87 for Australia.
The second match in the five-game series is in Cardiff on Friday.
