WASHINGTON (WUSA) -- Pairs from the U.S., Greece, Great Britain, Japan and Mexico were among the competitors in the Women's Duets Synchronized Swimming Free Routine Preliminary on Day 10 of the London 2012 Olympic Games at the Aquatics Centre on August 6, 2012.

See photos from the event above. (Photos by Clive Rose/Al Bello/Adam Pretty/Chris McGrath/Getty Images)

Learn more about the United States synchronized swimming teams here (