New Zealand swimmer Melissa Ingram took out the women's 200m backstroke on the first day of the FINA World Cup in Tokyo today.
Matthew Stanley was second in the 400m freestyle and Glenn Snyders finished third in the 50m breaststroke.
Toyko is the seventh of eight stops on the FINA Arena World Cup circuit around the globe with the final stop in Singapore at the weekend.
Ingram, 27, won her fourth final of the series after a stern battle with fellow Olympian Marie Kamimura (Japan), winning in 2:05.39. She led the whole way but by the slimmest of margins, just 1/100th of a second in front at the 150m mark before holding off the Japanese over the final 50m.
Stanley, 20, resumed his battle with American Michael Klueh in the 400m freestyle, after the New Zealander pipped him in the last round in Beijing.