Australia is through to the gold medal match after beating Canada 17-5 in their Olympic semi-final at Deodoro Stadium, setting up an epic final against New Zealand.
Australia led 12-0 at half-time after a double to 2014 World Sevens Player of the Year, Emilee Cherry.
The world number one side was prepared to play from inside their own half and were rewarded in the first seven minutes.
Charlotte Caslick threw a cutout ball inside her own 22 for Chloe Dalton to sprint away and then spread it wide for Emma Tonegato to feed back inside for Cherry to score.
The Tonegato-Cherry combination worked wonders again minutes later with the pair combining for Australia's second five-pointer.
Cherry's brilliance continued in the second half after she regathered her own grubber before spreading the ball wide for Dalton to score in the corner.
Canada held the ball for large periods in the second half and eventually broke through to score through Charity Williams after winning a scrum against the Australian feed.
Australia will play for a gold medal against New Zealand at 8am AEST, after the Kiwis beat Great Britian 25-7 in their semi.
(Tries: Cherry 2, Dalton Cons: Dalton)