Ochoa's lead cut to one stroke after three

MORELIA, Mexico, April 25 (UPI) -- Defending champion Lorena Ochoa shot a 4-under 69 Saturday, but her lead was reduced to one after three rounds of the Corona Championship.

Ochoa finished 54 holes at 20-under 199, one off her tournament record of last year. She is one stroke ahead of Suzann Pettersen, who had a 67 Saturday.

Na Yeon Choi (69) is third at 204. Wendy Ward (66), Morgan Pressel (67) and Irene Cho (68) are tied for fourth at 14-under 205.

Ochoa had six birdies and a bogey through 11 holes and had a four-shot lead over Pettersen. That margin was cut in half one hole later when Ochoa made bogey and Pettersen had a birdie.

Two holes later, Ochoa made a double-bogey and the two were tied for the lead at 18-under.