Rio silver medallists Jason Waterhouse and Lisa Darmanin have gone one better in Melbourne, winning the Nacra 17 at sailing's last World Cup round.
Australia won two gold medals on the second-last day of competition, with Tess Lloyd and Eliza Solly taking out the 49erFX class.
Haylee Outteridge and Nina Curtis also won bronze in the 49erFX, while Australia had mixed fortunes in the 49er class.
Brothers William and Sam Phillips were heading into the medal race, but they were black flagged and finished fifth.
Compatriots Harry Price and Harry Morton won silver in the class behind Austria.
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This week was the first time Waterhouse and Darmanin have raced together in the Nacra 17s since their near-miss at the Olympics, where Argentina took the gold medal from them by one point.
Waterhouse said they took careful note of what had happened in other races on Saturday at St Kilda.
"It was really shifty and quite challenging," he said.
"We were watching the other fleets and we saw several start line disqualifications, so we knew we had to be careful.
"When we finally got out there, we got a good start and controlled the race from there.
"We were leading at the first bottom gate and probably made the wrong call so we had to fight our way back, but we had fun doing it."
Australia should win more medals in Sunday's final racing, with Matt Wearn leading the Laser class and Jake Lilley also holding first place in the Finn category.
Rio silver medallists Matt Belcher and Will Ryan, had mixed fortunes on Saturday - they were u-flagged in the first race, but won the second and have a 20-point lead in the men's 470s.
