The "fearless" Young Matildas are close to securing a FIFA Under-20 World Cup berth after surging into the semi-finals of the Asian Under-19 championship.
The team's biggest name, Mary Fowler, pounced with an 84th minute goal to secure a 1-0 win over Vietnam in rain-drenched conditions which caused a second half delay in Chonburi, Thailand on Saturday night.
A Matildas World Cup player earlier this year, 16-year-old Fowler bagged her third goal in as many games, firing the ball in low from a packed penalty area.
It ensured Australia finished second in Group A and advanced to the final four where three Under-20 World Cup berths are up for grabs.
One more win, in either the semi-finals or third place playoff, will be enough to punch a ticket to Nigeria in July 2020.
Young Matildas coach Leah Blayney had declared before the tournament that they did not fear any opposition and was pleased with the way they stuck to their task in the difficult conditions.
"We had a good game plan going and it worked with our possession-based football," said Blayney.
"We found it difficult to execute the shots in the first half due to the rain. At the end of the day, our attitude and never say die mentally helped us with the win."
Even a draw would have been enough for Vietnam to finish ahead of Australia and Blayney was relieved when Cu Huynh Nhu's header flew wide of the net and Luong Thu Thuong blazed over the top before halftime.
She sent on Princess Ibini and Charlotte Grant in the second half a bid to change the game.
Australian goalkeeper Annalee Grove was called upon again on 54 minutes to deny Vietnam captain Nguyen Tuyet Ngan from inside the penalty area and Ngan Van Su missed a golden chance when clean through on goal two minutes later.
But Australia grew in stature and Fowler went close to breaking the deadlock on 69 minutes before doing so from six yards out 15 minutes later.