She still was tied for the lead Friday at the Kraft Nabisco Championship, the story of her year.
Ochoa missed four birdie putts inside 10 feet that kept her from building a big lead halfway through the first major of the season, settling for 1-under-par 71 at Mission Hills that left her tied with Heather Young.
"I can't complain," Ochoa said. "I left a few putts out there that hurt, but that's the way it is. It's a major championship. You have a couple of days to go. I'm in a good position. It's where I like to be."
Ochoa and Young (70) were at 5-under-par 139.
Two shots back was Annika Sorenstam, a three-time Nabisco winner who posted her 16th consecutive round under par despite feeling so sick on the back nine that she doubled over in pain while speaking to reporters.
"This course is tough enough," Sorenstam said after shooting 70. "You don't need a stomach ache on top of it."
CHAMPIONS TOUR: In Punta Cana, Dominican Republic, Mark Wiebe shot a course- record, 5-under-par 67 to take a two-stroke lead in the Cap Cana Championship, the first professional golf event ever played in the Dominican Republic.
Vicente Fernandez and Fulton Allem opened with 69 in windy conditions on the Jack Nicklaus designed-Punta Espada course. The sustained 25 mph wind led to an average score of 74.688, the highest opening-round mark this season.
NATIONWIDE TOUR: In Livermore, Calif., J.J. Killeen shot 3-under-par 69 to open a five-stroke lead after the second round of the Livermore Valley Wine Country Championship.
Killeen is at 10-under 134.
Former Georgia Southern golfer Aron Price (69) and Joe Daley (70) are tied for second at 139.
EUROPEAN TOUR: In Cascais, Portugal, Gregory Bourdy shot 6-under-par 65 to lead by two strokes after the second round of the Estoril Open.
Bourdy, the overnight co-leader with defending champion Pablo Martin, had six birdies to total 14-under-par 128.