begins his farewell meet — the world championships — live on The Olympic Channel: Home of Team USA and streaming here on NBCSports.com/live and the NBC Sports app on Friday at 1:30 p.m. ET.
Bolt, in the last individual event of his career, gets started with the 100m first round at London’s Olympic Stadium. He will race between 3:20 and 4:15 p.m. ET.
Bolt and top rivals Justin Gatlin, Christian Coleman and Yohan Blake will be among the heats, with 24 men advancing to Saturday’s semifinals if the same format is used as in 2015.