US sprinter Allyson Felix (L) waves to the crowd after the women's 100m dash at the Kawasaki track and field meet in Kawasaki, suburban Tokyo, on September 23, 2009. The 200m world champion clocked a time of 11.22 seconds to win the event. Getty Images logo Getty Images 29 months ago

US sprinter Allyson Felix (L) waves to the crowd after the women's 100m dash at the Kawasaki track and field meet in Kawasaki, suburban Tokyo, on September 23, 2009. The 200m world champion clocked a time of 11.22 seconds to win the event.