time Olympic champion diver Guo Jingjing easily won gold with her partner at the East Asian Games Sunday. The Chinese pair took gold ahead of Macau divers Choi Sut Ian and Lei Soi I who led after the first round of dives after a conservative start by Guo and Wu. But a series of impressive dives from the second round onwards ensured the Chinese pair won by a significant margin. Chinese divers also won Sunday in the women's 10-meter platform, men's 3-meter synchronized springboard and men's 10-meter platform to complete a sweep of all 10 diving golds. In Badminton, unheralded South Korean Choi Ho-jin upset Olympic champion Lin Dan in straight sets to win the men's singles final. China also lost in the women's doubles final, leaving it with only mixed doubles gold. In the women's singles final, world No. 17 Yip Pui-yin of Hong Kong beat compatriot Zhou Mi 2-1 after Zhou retired with a waist injury in the third set. Elsewhere on the last day of the games, Japan was the dominant force in track and field, claiming six golds to China's four. In judo, Japan won five of the last eight golds, but lost to competitors from North Korea and South Korea in two finals. Hosts Hong Kong shocked Japan's under-20 team in a penalty shootout to win the soccer title. On Saturday South Korea beat neighbour and old foe North Korea on penalties 4