As a professional, Creamer has won 11 tournaments, including 9 LPGA Tour events. Creamer has been as high as number 2 in the Women's World Golf Rankings. She was the 2010 U.S. Women's Open champion. As an amateur, Creamer won numerous junior golf titles, including 11 American Junior Golf Association (AJGA) tournaments. Creamer joined the LPGA Tour in the 2005 season, and her victory in that year's Sybase Classic made her the LPGA's second-youngest event winner.