China's Olympic hope Liu Xiang stepped up his preparations for the 110-meter hurdles at the London Games with a victory at the Seiko Golden Grand Prix meet Sunday. Liu clocked 13.09 seconds to finish .24 seconds ahead of Omo Osaghae of the US. American Ronald Brookins was third in 13.69. Allyson Felix of the US won the women's 100m race in 11.22, finishing .16 seconds ahead of Melissa Breen of Australia. Chisato Fukushima of Japan was third in 11.39. China's Su Bingtian beat American competition to win the men's 100m race in 10.04, finishing .01 seconds ahead of Mike Rodgers, with Kim Collins third in 10.07.