Australians James Magnussen and Cate Campbell have won their pet events at the five-nation Aquatic Super Series in Perth.

Australian swimming stars James Magnussen and Cate Campbell won their pet events on the first night of the five-nation Aquatic Super Series on Friday but Japan took it right up to the host nation.

Australia won 10 of the 19 events at Perth’s Challenge Stadium highlighted by two women’s relays victories and individual triumphs to Magnussen, Campbell, Alicia Coutts and Brisbane teenager Madeline Groves.

The Japanese men were particularly impressive, coming out on top in four individual races and the men’s 4x200m relay to close the night.

On the points table, Australia leads with 327 points ahead of Japan (259), China (205), South Africa (163) and Brazil (108).

Action got underway with Australia’s mixed 4x100m medley relay team of Ashley Delaney, Daniel Tranter, Coutts and Emma McKeon triumphant by almost three seconds.

Australia’s first individual winner was in the men’s 50m backstroke with Ben Treffers victorious before the first big name of the night, Cate Campbell, cruised to victory in the 100m freestyle in a time of 52.34sec.

Star attraction Magnussen took out the men’s 100m freestyle in a time of 47.59s ahead of fellow Australian Cameron McEvoy (48.19).

It was another one-two result for Australia in the women’s 100m breaststroke with Sally Hunter pipping Leisto Pickett and Japan’s Mio Motegi third.

Groves comfortably claimed the 200m butterfly title, Bronte Barratt won the women’s 400m freestyle before Mack Horton hit the wall first in the men’s 400m freestyle by only 0.09s ahead of McKeon.

Belinda Hocking was emphatic in capturing the 200m backstroke title before Coutts racked up her first individual victory by winning the 50m butterfly only 0.24s ahead of China’s Ying Lu.

Australia’s 4x200m women’s freestyle relay team – McKeon, Barratt, Groves and Kylie Palmer – then won by almost 14 seconds ahead of Japan and South Africa.