Millionaire Ko pondering how to spend her winnings

Now she is officially a millionaire, Lydia Ko joked she will have to keep a closer watch on where her paychecks go.

"I'll probably see that going into my mom's account," she said with a laugh, referring to the $210,000 she got for winning Sunday's Marathon Classic.

The 17-year-old broke free from a late tie with Ryu So-yeon, hitting a wedge to four feet for birdie on the 72nd hole to take the lead. Then she tried in vain-she's just 5-foot-5-to see past the large gallery at 18 as Ryu missed a 6-foot birdie putt on the final hole that would have forced a playoff.