Potter completed the course in a time of 58min 08sec to complete a superb trip to South Korea after she took gold in Haeundae last week.

The Briton finished three seconds clear of compatriot and training partner Kate Waugh, who earned silver in 58:11.

Sandra Dodet of France came through to claim the bronze medal in 58:53.

"Today I had all the choices on the pontoon," said Potter, the 2019 European champion.

"I worked the swim really hard and the first bit of the bike and we were just extending the lead.

"I know my strength and I know it’s better for me to close it gradually. 

"I stayed cool and worked the up hill, worked the downhill and just had full momentum going past and I used that to full advantage."

There was a surprise winner in the men's race as triathlon newcomer Jawad Abdelmoula of Morocco clinched his first World Cup gold.

Abdelmoula clocked 51:43 to secure a sensational victory at the South Korean venue.

Italy's Alessio Crociani did enough for the silver medal after finishing nine seconds behind the Moroccan, while bronze went to Sergio Cabrera of Spain in 51:53.

"I was really happy today because last week I was on the third pack on the bike," said Abdelmoula.

"Today I was very happy as I was on the first pack and ran very well."