In the long view Bolt's world is changed. He is now the Olympic favorite in a glamour event and is also the fastest sprinter in history. With that status comes endless and justifiable questioning about steroids and other performance enhancers. (Bolt has been drug-tested at least three times since early May, including after last Saturday's race, and told SI in Jamaica, "I'm clean, yeah. Definitely.") He lives at the base of a hillside in Kingston, not far from the training track. Powell lives at the crest of the ridge, where the more lavish homes are found, and drives past Bolt's house every morning en route to practice. Bolt says he will soon consider relocating to the top of the hill, a move that would be both well-earned and symbolic.
In a 40-year span that has seen improved training, faster tracks and repeated doping scandals, the 100-meter world record has fallen to a once-unthinkable level
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*Record nullified because of doping violation