Ochoa made the most of her vocal travelling support at St Andrew's
-6 L Ochoa (Mex)
-4 L Friberg (Swe), IB Park (Kor)
-3 R Hudson (Eng), A Miyazato (Jap)
-2 B Lindicome, J Mills (Aus), M Lee (Kor)
World number one Lorena Ochoa's bid for a first major got off to a fine start at the Women's British Open as she finished her first round on six under.
In the first women's professional event staged at St Andrew's, Mexico's Ochoa shot a bogey-free round to lead by two from Louise Friberg and In-Bee Park.
England's Rebecca Hudson hit birdies on 16 and 17 to lie joint fourth on three under alongside Ai Miyazato.
However, Laura Davies's round collapsed as she shot a six-over-par 79.
Ochoa, though, was understandably delighted after her blemish-free round.
"I love my start," she said. "This is my best round of this year and it was one of those when things are easy.
"I'm really glad I took advantage of the conditions. It was a really early wake-up call (0500 BST), but I don't mind. In my head I thought two or three under, but when you see the good conditions I tried to go to six or seven under.
I played pretty solid, but unfortunately on the back nine I was unlucky with a couple of bounces
Annika Sorenstam, who only lost her world number one status to Ochoa earlier this year, remained in contention after her round of 72 left her one under alongside last year's winner Sheri Steinhauser.
Michelle Wie fell away after an encouraging start to finish level par as she looks to put her recent poor form behind her at St Andrew's.
Bogeys at 11, 14 and 16 interrupted the 17-year-old American's charge, and she said: "I thought it was semi-disappointing and semi-successful.
"I played pretty solid, but unfortunately on the back nine I was unlucky with a couple of bounces. Anyway, I don't want to look back anymore. I just want to look forward."
Extensive coverage of the Women's British Open can be seen on BBC TWO and the BBC Sport website. Click on the 'Golf on the BBC' link for times.