Dhaka, June 3 -- US sprinter Melissa Jefferson-Wooden clocked a world-leading 10.73sec as she stormed to an emphatic victory in the 100m at the Philadelphia Grand Slam Track meeting on Sunday.

The 24-year-old from South Carolina, a bronze medallist in the 100m at the Paris Olympics last year, scorched home ahead of Tamari Davis, who was second in 11.03sec.

Thelma Davies was third in 11.14sec while Olympic 200m gold medallist Gabby Thomas - beaten by Jefferson-Wooden in Saturday's 200m - was fourth.Jefferson-Wooden's time vaults her into elite company as one of the 10 fastest women over 100m in history.

"It means everything, I've been working so hard for this," a delighted Jefferson-Wooden said afterwards."I've been learning so many new...