While all but one of the world records from Bangkok were concentrated in weightlifting, the spread is expected to be more varied in Busan, which dangles 420 gold medals to 6,714 athletes from all over Asia.

After just five days of competition, numerous world records have already fallen. North Korean weightlifter Ri Song-hui got things started Tuesday by hoisting 102.5 kg in the snatch section of the women's 53 kg class.

Four more world records were shot down Wednesday. The Chinese team of Zhao Yinghui, Gao Jing and Du Li topped the women's 10-meter air rifle team world mark with 1,194 points. The Chinese men followed suit with 1,788 points in the same event to better the existing world mark.

Meanwhile, Japanese swimmer Kosuke Kitajima clocked 2 minutes 9.97 seconds in the 200 m breaststroke, breaking the longest-standing world record in men's swimming. Le Maosheng of China added a weightlifting world record, raising 182.5 kg in the clean and jerk section of the men's 62 kg class.

If the first five days of the Asian Games are any indication, more world records are likely to get the axe as the competition heats up.

In weightlifting, China is forecast to dominate the gymnasium. The country posted 42 world records at the 1994 Hiroshima Asiad and 10 at the 1998 Bangkok Asian Games.

Another potential world record breaker is Chinese shooter Tao Luna, who set the mark to beat in the 25 m air pistol at the World Cup competition in Seoul last May. She hopes to top her own performance in Busan.

Chinese swimmer Qi Hui, the current world record holder in the women's 200 m breaststroke, and her compatriot Luo Xuejuan are highly expected to better their marks this time.

The host country is also taking a shot at world records in its traditional strength of archery. Having swept all four archery titles in Bangkok, South Korea is targeting not only a repeat sweep but a set of new world records.