Even when he slows to a jog, Usain Bolt is as fast as he needs to be. His sidekick, Yohan Blake, is looking like the closest thing there is to a true challenger. Is there anyone in the Olympic 200-metre final on Thursday night who can outsprint both of the Jamaicans to win the gold?
Tyson Gay tore up the track to complete a rare sprint treble at the world championships on Saturday and help the United States to the 4x100m relay crown.
Only fellow American Michael Johnson's world record of 19.32 seconds at the 1996 Atlanta Olympics is faster than his timing of 19.62 seconds, at the US championships.
Usain Bolt stretched, stifled a yawn and, almost apologetically, extracted his giant frame from his blocks before strolling through his heat as he began his bid for a third successive world 200 metres title on Friday.
Justin Gatlin, the year's fastest at 100 and 200, had a bye in the 100 at the trials, but plans to challenge Usain Bolt at both distances in the August World Championships in Beijing.
After two decisive defeats at the hands of Usain Bolt in the space of five days, Justin Gatlin is showing the strain.