 Deciding to forgo college, Park turned professional at age 17 in April 2006, competing on the Futures Tour, where she entered sixteen events.She earned full playing privileges on the LPGA for 2007 at the December 2006 LPGA Qualifying Tournament and was named LPGA Tour Rookie of the Year for 2007.Her best finish on the LPGA tour was a tie for runner-up as a rookie at the U.S. Women's Open, where she led after two rounds.