Missy Franklin, Rebecca Soni, Dana Vollmer and Allison Schmitt set a swimming world record of 3:52.05 in the 4x100 medley relay.
Day 8: USA medal count
Midway through the London Games, the U.S. leads China in golds (26-25) and overall (54-53). overall.
Roger Federer meets Andy Murray in a Wimbledon title rematch; Usain Bolt races in the 100-meter final and women begin boxing.
Highlight: Enis sets off wild night for Brits
When Jessica Ennis slumped to the track, sobbing, the announcer told an ecstatic crowd that her heptathlon title was Britain's first track and field gold medal in London since 1908.
Did you know
Ilya Ilyin of Kazakhstan won gold in weightlifting in the 94-kilogram class. His training secret? "I think chicken and horse meat are ideal food ... to digest."