U.S. women win 4x400 relay to give Felix 3rd gold

The United States' women's 4 X 400-meter relay team from left, Francena McCorory, Allyson Felix, Sanya Richards-Ross and Deedee Trotter celebrate after winning the gold medal during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Aug. 11, 2012. / AP Photo/Martin Meissner

(AP) LONDON - Allyson Felix won her third gold medal of the London Olympics, giving the United States a 20-meter lead after the second leg of the 4x400-meter relay and then watching teammate Sanya Richards-Ross bring home the victory Saturday night.

The U.S. runners finished in 3 minutes, 16.87 seconds for the country's fifth straight Olympic title in the event. Russia finished second in 3:20.23 and Jamaica was third in 3:20.95.

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DeeDee Trotter ran the opening leg for the United States and built a lead before handing to Felix, who more than doubled the advantage by the time she passed to Francena McCorory.

Richards-Ross had a stress-free anchor leg to add this gold medal to her 400-meter gold. Felix earlier won the 200 and 4x100 relay.