Great Britain cumulative their initial win in a Hockey World League Final with Helen Richardson-Walsh scoring a usually idea opposite Australia.
GB mislaid their opening diversion 2-1 opposite a hosts Argentina before a 1-1 pull with China.
Australia had won their dual prior fixtures in a tournament.
Britain’s feat on Tuesday means they are now expected to equivocate confronting World and Olympic champions a Netherlands in Thursday’s quarter-finals.
“We’re adult and using now and we suspicion that was a illusory opening from us,” Richardson-Walsh told BBC Sport.
“That’s a series dual side in a universe and, nonetheless a measure didn’t advise it, we dominated. That’s set us adult good for a quarter-finals.”
Against Australia, Crista Cullen done her initial rival coming for GB given timid after winning bronze during a London 2012 Olympics.
The GB women have struggled to find breakthroughs with their chastisement dilemma routines during a foe and were again thwarted with 8 attempts.
At a other finish Britain were gladdened to screw Maddie Hinch who pulled off dual essential saves to repudiate Australia.
However, Alex Danson – who done her 250th general coming on Sunday – was in desirous form.
Her darting run from a left and successive shot during a second entertain would have seen her open her comment for a contest – had Richardson-Walsh not claimed a idea with a hold inches from a goalline.
Britain will learn a pull for Friday’s quarter-finals once a Pool A and B fixtures are competed in a early hours of Thursday morning GMT.