EDMONTON, Alberta — Laura Diaz shot a bogey-free 6-under 65 yesterday to take the first-round lead in the Canadian Women's Open, while 17-year-old Michelle Wie opened with a 75 to drop 10 strokes back.

Diaz made a long birdie putt on the par-4 first hole — her 10th hole of the day on the Royal Mayfair course.

"It was just really fun for me to make the 33-footer," Diaz said. "It's been what I've struggled with, so it was nice to see that go in. It puts me in a good frame of mind going into tomorrow."

Wie, making her first appearance in the event, closed her late afternoon round with a double bogey on the par-4 ninth. She also had a double-bogey 6 on No. 12, a bogey on the par-5 third and a birdie on the par-4 first.

"Who wouldn't be frustrated today, right?" said Wie, a Punahou School alum. "It's a very frustrating round because I felt like I was driving good and I had two bad holes. I mean, I played very consistently aside from that, made a lot of good par saves. I've just got to break through and shoot a really low score."

Kelli Kuehne and Kyeong Bae opened with 66s.