Event 37 – Mixed 200m Medley Relay 12 years & under
- Backstroke: Owen Zhang
- Breaststroke: Alina Chen
- Butterfly: Hannah Costelloe
- Freestyle: Oscar Ryan
Event 38 – Mixed 400m Medley Relay 13 years & over – TEAM A
- Backstroke: Emma Sloan (swimming up an age category)
- Breaststroke: Pearl Turner
- Butterfly: Jerry Guo
- Freestyle: Matthew Costelloe
Event 38 – Mixed 400m Medley Relay 13 years & over – TEAM B
- Backstroke: Bruce Xie
- Breaststroke: Brayton Turner
- Butterfly: Angelina Chen
- Freestyle: Jemima Torrens
Event 42 – Girls 200m Freestyle Relay 12 years & under
- Hannah Costelloe
- Zoe Dziok
- Alina Chen
- Emma Sloan
Event 45 – Boys 200m Freestyle Relay 15 years & over
- Jerry Guo
- Brayton Turner
- Bruce Xie (swimming up an age category)
- Matthew Costelloe
Event 105 – 10 x 50m Freestyle Relay
- Jackson Toussaint
- Millie Sloan
- Oscar Ryan
- Venus Chan
- Lucinda Torrens
- Rhia DeBono
- Jazmin Pearse
- Owen Zhang
- Henry Bury
- Jack Mooney
- Reserve: Ellie Sloan
Event 110 – Girls 200m Medley Relay 12 years & under
- Backstroke: Zoe Dziok
- Breaststroke: Alina Chen
- Butterfly: Hannah Costelloe
- Freestyle: Emma Sloan
Event 113 – Boys 200m Medley Relay 15 years & over
- Backstroke: Bruce Xie (swimming up an age category)
- Breaststroke: Brayton Turner
- Butterfly: Matthew Costelloe
- Freestyle: Jerry Guo