A Mana Iwabuchi hat-trick helped the Nadeshiko to a 3-0 win over China PR in the women’s tournament, while Hajime Moriyasu’s men’s side proved far too strong for Hong Kong in a 5-0 success.

Late goals in either half helped Paulo Bento’s side to a 2-0 win over Hong Kong, while Asako Takakura’s Nadeshiko showed why they are Asian champions with a 9-0 victory.

J1 League pair Musashi Suzuki and Genta Miura found the back of the net for Hajime Moriyasu’s side, who became the only team to finish the tournament’s opening day with a perfect three points.

The East Asian regional competition, which features men’s and women’s championships played concurrently, will continue on a round-robin basis until next Wednesday.

Head coach Paulo Bento's squad for the regional tournament consists of players who play their club football in Korea Republic, China and Japan.

The lone exception is Vancouver Whitecaps FC midfielder Hwang In-beom while the Europe-based players were not called up to allow them to focus on their club commitments.

Jia has selected a squad that featuresformer Paris Saint-Germain star Wang Shuang, Gu Yahsa, Zhang Rui and Li Ying.

Seven players from the Jiangsu Suning Ladies FC side who finished second in the inaugural AFC Women's Club Championship, including Peng Shimeng and Yang Li, have also been included.

The in-form striker made the pledge in the wake of her superb hat-trick against Melbourne Victory on Saturday, which helped Beleza to their inaugural AFC Women’s Club Championship title in Yongin.

Tanaka’s four goals in that tournament followed 20 in Japan’s Nadeshiko League, a competition where she was also voted Most Valuable Player, but the 25-year-old has recently been a conspicuous absentee at the international level.

Emily Gielnik scored the game’s only goal in the 23rd minute, while Sam Kerr provided the assist, had a penalty saved and hit the woodwork on a night where the Australian captain did everything but score.

The match was part of the Matildas’ preparation for next February’s Olympic Qualifiers, where they will meet Chinese Taipei, Thailand and China PR on the Road to Tokyo.