The Rio 2016 Olympic champions were once again in emphatic form as they saw off China 10-5 at the Schaal Aquatic Center at the University of California, Davis.

Melissa Seidemann, Alexandra Thomason, Abrielle Hill and Aria Fischer were the star performers for the reigning world champions as they each scored twice, while Jewel Roemer and Alexis Liebowitz also found the net.

Deng Zewen was the stand-out performer for the Asian team as she scored four of China’s five goals.

Nong Sanpeng added the fifth.

“We expected nothing to be easy," said Bayley Weber of the US.

"We’ve been working on five-on-six a lot and improving each game.

"I’m 16, a junior in high school.

"This is my first senior international tournament.

"I’ve learned that it’s much more physical [at this level], you have to be able to move, and it’s all about communication.”

The Americans are one of three unbeaten teams with Australia and Japan also boasting 100 per cent records.

Japan dominated Kazakhstan 15-4 today which included four goals for both Yumi Arima and Akari Inada.

Mimori Yamamoto and Kotori Suzuki both added two goals each while Miku Koida, Kana Hosoya and Misaki Noro were also on target.

Australia, meanwhile, collected their second win in as many days after defeating Canada 10-7.

Hannah Buckling was in fine scoring form as she posted four points while Keesja Gofers, Isobel Bishop, Rowie Webster all scored twice for the Australians, whose men won the corresponding Intercontinental Tournament on Sunday (April 30).