Miyazato shares the lead at 9-under 135 with joint first-round leader Na Yeon Choi of South Korea (68) and Becky Brewerton of Wales, who bogeyed the 16th and 17th to shoot 68.
Obviously theres a touch of disappointment because I got to go 11 under. This is a really tough course to not have any bogeys, Brewerton said. It would have been quite an achievement not to. Disappointed I did it at the end, but I would have taken 68 at the start of the day.
In-Kyung Kim of South Korea, the other first-round co-leader, was a shot back in fourth.
This is my fifth time in Evian, but I havent been playing good the last four years, so I am happy with that, Miyazato said. I made my first birdie on 3 today, that was a pretty long putt, like 6 meters. After that, I (managed to) keep it going.
Paula Creamer, the 2005 champion, moved within two of the lead, shooting 5-under 67.
Despite a double bogey on the fourth, Wie hit five birdies in her round to retain a chance of gaining points for a place on the U.S. Solheim Cup team for next months match-up against Europe.
After finishing Thursdays opening round at 3 over, top-ranked Lorena Ochoa began her second round with bogeys on the first two holes. But the Mexican made a string of birdies to shoot a 69 to get to even par.
Brewerton is vying for a place on Europes team after her rookie appearance two years ago.
Defending champion Helen Alfredsson of Sweden (69), who is bidding for a fourth Evian title, was at 5 under.
Brewerton made birdies on Nos. 2, 3 and 5, while an eagle at the seventh and another birdie early on the back nine moved her to 11 under.
After winning the Spanish Open last week, the 26-year-old from Wales is finding her best career form.
Veteran Laura Davies, the 1987 U.S. Womens Open champion and a two-time Evian Masters winner, is so impressed by Brewerton that she fears losing her own place on the Solheim Cup team.
If she keeps going like this, shes going to be an automatic (pick) in the points. Shell knock me out and I wont be playing, Davies said.