With seven birdies, two bogeys and a round of 67 shots, Sagström not only consolidated her leadership - she has also pulled in from South Korean Kang Haeji.
The two were in split management after the preliminary round, but Sagström's 67 strokes this time alone lead 13 under pairs with one stroke down to the nearest competitor.
New second is Ally McDonald, USA, who together with Robyn Choi from New Zealand stood for today's best round. McDonald is a hit after Sagström overall.
Linnea Ström is also in the fight for the top positions. The Gothenburg golfer is divided into three and has three strokes up to Sagström. On Friday, Ström was listed for three birdies and went on the round of 69 strokes.
Both women and men play at the weekend in Australia - the women compete on the US LPGA tour, the men on the European Tour - and the prize money is the same for both genders.