The 18-year-old won six gold medals at the 2012 Olympics and in doing so not only claimed the title of winningest female swimmer ever at a world meet, but also became the fifth swimmer to capture six or more golds at Worlds or the Olympics. She won the Women’s Sports Foundation’s Sportswoman of the Year award this year. And, she joined the Cal swim team, turning down millions of dollars of endorsements to get a college degree.