Dhaka, Aug. 24 -- American sprinter Melissa Jefferson-Wooden blew away a strong field in the 100 metres in Brussels on Friday to underline her status as the firm favourite at next month's world championships.

Last year's Olympic bronze medallist, unbeaten all season over 100 metres, was fast out of the blocks and finished a good five metres ahead of her rivals in 10.76 seconds at the Diamond League athletics meet.

Compatriot and current world champion Sha'Carri Richardson was second in 11.08 seconds, with Britain's Daryll Neita third in 11.15 seconds.

Jamaica's Shelly-Ann Fraser-Pryce was fourth in one of her last races in an illustrious career that has brought two Olympic and five world 100 metre titles. The 38-year-old plans to retir...