Australia's women’s 4x200m freestyle relay has broken the world record on their way to claiming gold ahead of the USA.
The quartet of Ariarne Titmus, Madison Wilson, Brianna Throssell and Emma McKeon smashed the previous time of 7:42.08 which was set by China a decade ago in the supersuit era.
Titmus, who swam the first leg of the relay, set a new Commonwealth record to give her teammates a lead.
It is Australia's third gold in the relay events after taking home the women's 4x100 freestyle relay and 4x100m mixed medley relay.
“As Emma was coming to the wall, I was just screaming with all my energy that I had left saying ‘come on, you can do it’ – nothing describes the moment when Em touched the wall,” Wilson said.
Meanwhile, teenager Kaylee McKeown placed equal fourth in a tight women’s 50m Backstroke final, clocking 27.65.
Friday night will see Cate Campbell and Emma McKeon in the Women’s 100m Freestyle final.
Campbell raced in her first semi-final of the World Championships and qualified second fastest in 52.71, while McKeon took out her semi in 52.77 to head in as the third fastest competitor.