Timothy Hodge won his third gold medal for hosts Australia as the World Para Swimming World Series meet in Melbourne concluded.
The S9 swimmer took top honours in the men's 50 metres backstroke to add to his 100m butterfly and 100m backstroke titles from the Melbourne Sports and Aquatic Centre.
Every race at a World Para Swimming World Series features swimmers of different classifications with a points formula determining who wins.
Melbourne was the first event of the Paralympic year with Hodge looking ahead to Tokyo 2020.
"It's a really good feeling to come out here and do some good times and produce some good swims and even better to get a couple of gold medals," he said.
"I feel like the times I do now have a little bit of an influence on the times I'll do later this year, but for now the ultimate goal is just to get the race plans right and to get the techniques and see what little bits need improvement.
"It's really important to get these things right heading into Tokyo."
Australia dominated the three-day event and finished top of the medals table with 16 golds, 17 silvers and 19 bronze.
Other home winners today included S14 racer Liam Schluter who captured a pair of titles in the men's 200m individual medley and 200m freestyle.
Taylor Corry was Australia's gold medallist in the women's 50m butterfly, with her victory pushing New Zealand's nine-time Paralympic gold medallist Sophie Pascoe into second.
Pascoe, an S10 swimmer, recovered less than a hour later by winning gold in the women's 50m backstroke.
American S7 competitor Evan Austin also topped a podium as he won gold in the men's 50m butterfly, while New Zealand's Cameron Leslie took the 150m individual medley title.
Madeleine McTernan secured gold for Australia in the women's 200m freestyle and the women's 200m individual medley went to her team-mate Katherine Downie.