American swimmer and Olympic gold medalist who won her first medal at the 2004 Athens Summer Olympics, and in 2012 won gold for the 100-meter butterfly.
She began swimming competitively at the age of 12.
She began college at the University of Florida, but eventually transferred to the University of California, Berkeley.
She married former Stanford University swimmer Andy Grant.
She broke Natalie Coughlin's freestyle record in 2009.