 Bolt announced that he would double @-@ up with the 100 metres and 200 metres events at the Beijing Summer Olympics , and the new 100 m world @-@ record holder was the favourite to win both . Michael Johnson , the 200 m and 400 m record holder , personally backed the sprinter , saying that he did not believe that a lack of experience would work against him . Bolt qualified for the 100 m final with times of 9 @.@ 92 s and 9 @.@ 85 s in the quarter @-@ finals and semi @-@ finals , respectively . 
