IAAF Diamond League
Allyson Felix (2nd l) of USA on her way to victory in the women's 400m from Debbie Dunn (c) of USA and Shericka Williams (2nd r) of Jamaica during the Iaaf Diamond League meeting at the Letzigrund Stadium on August 19, 2010 in Zurich, Switzerland.
(Aug. 18, 2010 - Source: Michael Steele/Getty Images Europe)