Less than two days after snaring Australia’s opening gold medal at World Aquatic Championships in Singapore, distance swimmer Moesha Johnson has done it again.

Moesha Johnson wins Australia's first 10-kilometre open water world title, as compatriot Kyle Lee opened the team medal tally with bronze in the men's race.

Germany's Florian Wellbrock clinched gold in the men's 10km open water race, while Australia's Moesha Johnson secured the women's title at the World Aquatics Championships in Singapore on Wednesday, after both of the races were postponed because of poor water quality off Sentosa.