Busan: Japan dominated the swimming, South Korea moved towards the football quarter-finals and Chinaís women added to the countryís gold medal haul in cycling, weightlifting, judo and fencing at the Asian Games on Monday.
Japanís Kosuke Kitajima stormed to gold in the menís 100 metres breaststroke.
Takahiro Mori, Yuko Nakanishi and the menís 4x200 metres freestyle team were also victorious at Busanís Sajik Pool as Japan won four out of five finals to take a 4-1 first-day lead over fierce rivals China in the swimming gold medal standings.
Chinaís Yang Yu won the womenís 200 freestyle in another Games record and a personal best of 1:58.43.
Japan came back when Yuko Nakanishi won the womenís 200 butterfly final in 2:08.99.
Japan also won gold in the menís 4x200 freestyle relay in 7:20.59, the fourth Games record of the day.
Korea march on
South Korea marched towards the football quarter finals with a 5-2 thrashing of Oman.
China are also in the running after coasting to a 3-0 win over Bangladesh. They next face India, who beat Turkmenistan 3-1, to decide top spot.
Thailand and the United Arab Emirates will contest qualification from their group after the former beat Vietnam 3-0 and the latter secured a 2-1 win over Yemen.
More gold medals were handed out in cycling with Kazakhstanís Andrei Teteriouk winning the menís 48.4 km individual time trial with a time of 1:02:11. In the womenís 24.2 km individual time trial, the gold went to Chinaís Li Meifang.
In fencing, South Koreaís Lee Shin-mi won the gold in womenís individual sabre, outclassing teammate Lee Gyu-young. In the individual foil, Chinaís Zhang Lei took the gold, beating second place Lim Mi-kyung of South Korea.
South Koreaís Jo Su-hee topped Mizuho Matsuzaki to win the womenís under-78 kg judo gold. Chinaís Pan Yuqing and Nasiba Salayeva of Turkmenistan got bronze medals.
In the menís under-100 kg, Japanís Keiji Suzuki beat world Jang Sung-Hoo of South Korea 2-1. The bronze medals went to Kazakhstanís Askhat Zhitkeyev and Abbas Fallah of Iran.
In the womenís 48-kg weightlifting, Chinaís Li Zhuo won gold with a total of 200 kg, with Kay Thi Win of Myanmar taking the silver and Raema Lisa Rumbewas of Indonesia taking the bronze.