The 19-year-old sophomore at Auburn, the 63rd qualifier in the 64-player field, defeated 13-year-old Michelle Wie, the No. 2 qualifier, of Honolulu, 1-up.

Wie shot 140 over two rounds on the Philadelphia Country Club course to place second overall in qualifying on Wednesday. Martinez shot 153, which tied her with nine others for 60th place and forced her to earn a spot in match play.

Wie, who in June became the youngest to win the U.S. Women's Amateur Public Links, was 1-up after six holes. But she bogeyed No. 7 to fall into a tie. She never led again against Martinez, who made it to the Women's Amateur semifinals last year.

"If she plays that way in stroke play, she really would be good," Wie said. "Some players are better in match play."

Martinez won despite being penalized a hole for accepting a ride in a golf cart.

"That's experience," said Wie's golf coach, Gary Gilchrist. "A lot of these girls have played in these events before. She hasn't. She lost. She has to learn from it."

MARU MARTINEZ

"I was very mad," Martinez said of the penalty. "But I just told myself that I had to start over again."

Martinez, unnerved after learning of the penalty, bogeyed the 10th hole to fall into a tie, but then regrouped and made a 12-footer on 14 to save par and take a one-hole lead.

"She didn't take advantage," Gilchrist said of Wie. "She let the other girl believe she could win."

Wie evened the match with a birdie on the par-4 16th, but Martinez came right back to take the lead on 17. She blasted out of a sand trap to 4 feet and made the par putt — after Wie had missed a short par putt — to reclaim a one-hole lead.

Wie saved par by knocking in a 5-footer on 18. But Martinez claimed the victory by making a 3-foot par putt.

"Everything just didn't work," Wie said.

Especially Wie's putting. While Martinez made long putts to stay in the match, Wie three-putted for a bogey on 7, took three putts to get down from the fringe on the par-5 8th and three-putted for a bogey on 9.

"I felt as if I hit it perfectly and read it perfectly, but it just didn't go in," Wie said.

Wailuku's Shayna Miyajima, the only other Hawai'i competitor remaining in the event, lost 5 and 4 to California's Charlotte Mayorkas.

Qualifying medalist Aree Song beat Emily Bastel, 4 and 3, in her first-round match and Laura Cross, 4 and 3, in the second round. Cross had eliminated Song's sister, Naree, 5 and 4, in the first round.