Aus 125-1published at 13.1 overs
Need 45 from 41 balls
Four more.
Nat Sciver strays onto the pads of Tahlia McGrath and she flicks past short fine leg and away to the boundary.
England are struggling.
Australia chase down 170 for loss of just one wicket
McGrath follows up 3-26 with ball by smashing unbeaten 91 off 49
Wyatt's 70 off 54 balls lays foundations for England's 169-4
McGrath takes two wickets in an over - Wyatt & Sciver (32 off 23)
Beaumont & Wyatt put on quickfire 82 for first wicket
Australia won toss, bowl first
Hosts leave out Perry
First T20, Adelaide - Australia go 2-0 up in points-based series
Callum Matthews
Need 45 from 41 balls
Four more.
Nat Sciver strays onto the pads of Tahlia McGrath and she flicks past short fine leg and away to the boundary.
England are struggling.
Henry Moeran
BBC Test Match Special
I have a theory you get more direct hits in the women's game than the men's game. We've had three or four in this match already. I can't remember any in the men's Ashes.
Need 49 more from 42 balls
Tahlia McGrath is finding the boundary with absolute ease at the moment.
She goes deep in the crease and gets under a full ball from Katherine Brunt to drive to the mid-off fence.
McGrath has put on 95 with Meg Lanning for the second wicket now.
England do need wickets, so Heather Knight has turned to Katherine Brunt.
Alex Hartley
England spinner on BBC Test Match Special
England need wickets and need to turn to their best bowlers now, the experience of Katherine Brunt and Sophie Ecclestone.
Need 58 from 48 balls
More width from Sarah Glenn and Tahlia McGrath picks up two more through the covers. England have had to put a deep fielder out to try and stem some of the runs.
Glenn is 0-39 from three overs now.
It is clipping leg stump, so it stays with the umpire's call.
England will keep their review, though.
Henry Moeran
BBC Test Match Special
England are reasonably confident... or desperate!
Sarah Glenn and England appeal for lbw against Tahlia McGrath but the umpire says no.
Heather Knight reviews, but I think it might be fairly out of hope than confidence.
Four again.
Too much width from Sarah Glenn and Tahlia McGrath finds the gap again.
Glenn is really struggling.
Target 170
Four more.
Tahlia McGrath finds the gap in the covers this time and Australia are charging ahead.
Sarah Glenn has conceded 33 from her 2.3 overs so far.
Target 170
Four more.
Meg Lanning pierces the covers and picks up another boundary.
The runs are starting to come easily for Australia. The required run-rate is down at 7.81 now.
Henry Moeran
BBC Test Match Special
McGrath has played brilliantly but England's field should probably come in a bit. The twos are coming quite easily.
Aus 97-1
What an innings this has been from Tahlia McGrath - she reaches her half-century off 28 balls with six fours and one six.
She is putting Australia in control.
Tahlia McGrath just gets her bat down in time. There was a split second in it.
We're debating if the bat is down in time or not.
It is a fair bit over the line, but it was in the air for a while.
Has Amy Jones pulled off something magnificent?
The ball gets a bit jarred under Tahlia McGrath's bat and Jones runs rounds and turns to whips off the bails.
This is very, very close.
Target 170
Four more. Tahlia McGrath rocks back and smokes a drive through the covers. She's up to 46 off 24 balls - what a hand.
Maia Bouchier is back on the field by the way - she has no issues with her knee.
Target 170
At the halfway point Australia have scored exactly half the runs they need to win. England need wickets, you would think.
Australia have scored 54 in the last five overs and 34 in the last three overs.
Andrew Moore
ABC on BBC Radio 5 Live Sports Extra
They've only just now found the ball!