The 16-year-old from New Zealand already has won twice on the LPGA Tour -- both times at the Canadian Women's Open. She also contended at the Evian Championship in the fifth and final major of the year.
The LPGA Tour says commissioner Mike Whan is returning from Asia and will review the petition. Whan will decide whether to waive the tour's minimum age requirement of 18.
Ko's mother told Golf Channel's website that her daughter plans to play the LPGA Titleholders in November as a professional.
Lexi Thompson won an LPGA Tour event at 16. She was granted membership and played her first LPGA event in 2012 as a member the day before turning 17.
More Sports Headlines
Iron Cowboy completes 50th triathlon in 50 days South Snohomish wins third straight game at Little League regional AquaSox race past Canadians 8-5 Iwakuma roughed up in M's loss to D-backs Tom Brady loses appeal; four-game suspension upheld Three AquaSox named to all-star team Golfer reports father missing for nine days M’s notebook: Nuno emerges as reliable bullpen arm
Our new comment system is not supported in IE 7. Please upgrade your browser here.