While the Bahamas and Jamaica each pulled out of contention with injuries, the United States won its third straight indoor relay title with its own share of pains as well.

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.