GLEN COVE, N.Y. (AP) — Bethany Wu shot a 2-under 68 on Tuesday in the U.S. Women’s Amateur to top the 64 match-play qualifiers.

Wu, the 17-year-old Diamond Bar, California, player who has committed to play at UCLA, finished stroke play at 3-under 137 at Nassau Country Club.

“Going to the back nine, I was thinking, ‘Don’t make any mistakes,’” said Wu, the runner-up last week in the Junior PGA Championship and a quarterfinalist two weeks ago in the U.S. Girls’ Junior. “(Earning medalist honors is) good for me because I’ve beat really top players here through stroke play.”

Brooke Riley of Manteca missed the cut with a two-day total of 18-over 156. She carded a 78 Tuesday, when she holed a single birdie but was done in by two double bogeys and five bogeys.

Australia’s Su-Hyun Oh, the first-round leader, was a shot back along with Andrea Lee of Hermosa Beach. Oh had a 72, and Lee shot 69.

Brooke Mackenzie Henderson, the 16-year-old Canadian who was the low amateur in the U.S. Women’s Open, had a 71 to tie for 12th at 2 over. Princess Mary Superal, the 17-year-old Filipino player who won the U.S. Girls’ Junior, was another stroke back after a 73.

Defending champion Emma Talley, the 20-year-old University of Alabama player from Princeton, Ky. tied for 46th at 6 over. She followed her opening 76 with a 70.

“I knew that today was a big day,” said Talley, who made the winning putt for United States in June in the Curtis Cup. “I got 1 over at one point, and I knew I just needed to stick with my game.”