The 18-year-old had yesterday triumphed in women’s 200m freestyle and added to her tally in Fiji's capital by clocking a time of 4min 49.84sec in the individual medley today, with team-mate Bec Cross touching home second in 4:54.64.

New Zealand’s Yeonsu Lee rounded off the podium places, finishing in a time of 4:54.64.

Wildin-Snedden’s victory continued Australia’s fine start to the Championships, with the country earning three further gold medals in the pool today.

Zac Incerti delivered gold in the men’s 50m backstroke in a time of 25.91sec, with Papua New Guinea’s Ryan Pini and New Zealand’s Bayley Main completing the podium in 26.43 and 26.58 respectively.

The final Australian triumph came in the men’s 800m freestyle relay as Incerti joined Jake Kersten, Bryan Poon and Thomas Wotton to win the event in 7:27.19.

New Zealand settled for the silver medal in 7:38.23 and a time of 7:54.07 was enough from New Caledonia to win bronze.

In the equivalent women’s event, New Zealand ended 5.78 seconds ahead of Australia to win the gold medal in 8:17.78, with New Caledonia again claiming bronze, clocking 8:42.77.

Further success for the Kiwi’s came in the mixed 200m medley relay, with Gabrielle Fa'amausili, Jacob Garrod, Emily Rennell, Daniel Hunter winning in 1:48.65.

Fiji and Papua New Guinea earned the silver and bronze medals with times of 1:53.48 and 1:53.86.

Hunter had already won gold for New Zealand in the men’s 100m freestyle final as the 21-year-old ended in the event in 49.49, leading home Australia’s Kersten, who managed a time of 50.13.

New Zealand’s Julian Weir completed the podium in 50.85.