London Olympics | Missy Franklin

U.S. swimmer Missy Franklin, center, enjoys the medal ceremony with teammate Elizabeth Beisel, left, and Russia’s Anastasia Zueva. Franklin won the gold, setting a world record of 2:04.06. Beisel took the bronze and Zueva silver. (Robert Gauthier / Los Angeles Times)

Aug. 3, 2012 7:43 PM PT

Missy Franklin, 17, of the United States wins her third gold medal in London as she sets a world record in the 200-meter backstroke.

Missy Franklin and Elizabeth Beisel, right, embrace at the 200m backstroke medal ceremony. Silver medalist Anastasia Zueva of Russia is at the left. (Dennis M. Sabangan / EPA)

Missy Franklin of the United States wins the women’s 200m backstroke final and sets a world record. (Fabrice Coffrini / AFP / Getty Images)

Missy Franklin, left, and U.S. swimming teammate Elizabeth Beisel celebrate at the finish line of the women’s 200m backstroke. Franklin led wire-to-wire. (Robert Gauthier / Los Angeles Times)

U.S. swimmer Missy Franklin waves to the crowd after winning gold and breaking the world record in the women’s 200m backstroke. (Leon Neal / AFP / Getty Images)