PALM DESERT, Calif. - Michelle Wie walked off the 18th green with her head held high. It wasn't her best golf, but it was good enough for fourth place - a respectable way to start her professional career.

Nearly two hours later, with a stunned look on her face and the tears still not dry, she tried to explain a bizarre sequence of events that made her debut memorable for all the wrong reasons.

Wie thought she would be cashing her first check. Instead, she was embroiled in a rules dispute that got her disqualified Sunday in the Samsung World Championship.

"I'm pretty sad, but, you know, I think I'm going to get over it," Wie said. "I learned a lot from it. It's obviously not the way I wanted to begin, but it's all right."

Everything went all wrong when she finished with a 2-over 74, leaving her 10 shots behind Annika Sorenstam.

Sorenstam, as dominant as she has been all year, responded to all the hype around the 16-year-old phenom from Hawaii by turning a four-shot lead into nine shots at the turn, building it as large as 10 shots and then closing with a double bogey from the desert for a 3-under 69.

Wie's troubles stemmed from the day before, when she took a drop from a Gold Lantana bush to the left of the par-5 seventh green, took a penalty drop for an unplayable lie, and escaped with a par.

Two rules officials escorted her to the seventh green after her final round Sunday, and she was asked to show where the ball disappeared into the bush, and where she took her drop.

They determined it was too close to the hole - 3 inches too close according to Wie, about a foot according to the rules officials. That's a two-shot penalty, so she should have added two strokes to her third-round 71.

Ultimately, she was disqualified for signing an incorrect card, which cost her $53,126 in prize money.

"I learned a great lesson," Wie said. "From now on, I'll call a rules official no matter where it is, whether it's 3 inches or 100 yards. I respect that."