July 25, 2010: Watch as Kenya's David Mutua surges past Americans Casimir Loxsom and Robby Andrews to win gold in the 800m at the IAAF World Junior Championships in Moncton, Canada.

June 26, 2010: Anna Pierce comes from behind to overtake Erin Donohue and Shannon Rowbury to win the 1500m at the USA Outdoor Championships in Des Moines.
Sept. 16, 2011: Jamaica's Yohan Blake runs a world-leading 19.26 in the men's 200m, good for the second-fastest time in history.
Sept. 3, 2011: Usain Bolt wins gold in the men's 200m in a time of 19.40, the fourth fastest time in history. American Walter Dix takes silver.