Ame-rican Tyson Gay eased to an impressive 100 metres victory and Chinese Olympic champion Liu Xiang overcame jet lag to win the 110M hurdles at the Reebok Grand Prix on Saturday.
Gay, bidding to become the next great US sprinter, cruised to a convincing triumph in a wind-assisted 9.76 seconds, 0.01 seconds inside the world record time.
The 24-year-old Gay said he felt the wind picking up on the blocks. "I don't really want to chase the world record. I'm more happy with the victory because there were some tough competitors today," Gay told reporters.
The 24-year-old outclassed a strong field including Olympic 200 metres gold medallist Shawn Crawford and Derrick Atkins of Bahamas, who entered the race boasting the second-fastest 100 metres time this year.
World record holder Liu shook off a poor start to nudge past American Terr-ence Trammell, twice an Olympic silver medallist.
Liu clocked 12.92 seconds and Trammell 12.95. Trammell partly blamed the loss on a strained adductor.
"It cramped on me," Trammell said. "I have mix-ed emotions because I'm happy with the time, but I'm disappointed with the loss."
American Alan Webb ra-ced past Kenya-born Bern-ard Lagat and Australian Craig Mottram to win the men's mile.
In the women's 100M, Jamaican Veronica Camp-bell dashed to victory, overcoming a false start and a stiff challenge from 2003 world champion Torri Edwards to lead the field in 10.93 seconds.
American Virginia Powell ran the year's fastest 100M hurdles time of 12.45 seconds.