Chinese women and Japanese men split the eight swimming golds on offer at the East Asian Games on Wednesday.
After four days at the pool, Japan holds a slight lead with 17 golds to China's 15.
China won in all four women's events: the 100-meter backstroke, the 400-meter freestyle, the 200-meter breaststroke and the 4 x 100-meter freestyle relay. World championship bronze medalist Gao Chang set a games-record 59.77 seconds in the 100-meter backstroke.
The Japanese men won the 50-meter breaststroke, the 100-meter freestyle, the 100-meter butterfly and the 100-meter backstroke, with world championship silver medalist Ryosuke Irie setting a games record of 52.76 seconds in the last event.
Also Wednesday, China beat Japan 3-2 to win men's volleyball gold.
Elsewhere, Japan sewed up men's tennis gold, with both Tatsuma Ito and Yuichi Sugita winning their semifinals. Chinese and Taiwanese pairings moved into the men's doubles final.
In squash, Hong Kong won the women's team competition, beating Japan and adding to its golds in the men's and women's singles.
In weightlifting, North Korea's Pak Hyon Suk won the women's 63-kilogram title and South Korea's Kim Kwang-hoon took out the men's 77-kilogram category.

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