Carlota Ciganda and Sarah Jane Smith share the lead after the opening round of the Lorena Ochoa International, in Mexico.
The pair boast a two-shot advantage at the top of the leaderboard from the trio of Karine Icher, Chella Choi and Maria Fassi after both shot a five-under-par round of 67.
Spaniard Ciganda enjoyed a bogey-free day, with five birdies taking her to the front of the field.
“I really like this course, I played good last year so it is great to be back,” said Ciganda.
“I played pretty solid, no bogies, five birdies, I hit it pretty close and I am just looking forward to keep it going.”
Aussie Smith is looking to collect her maiden victory on the LPGA Tour and carded seven birdies – the last of which came on the 18th.
Smith said: “It was kind of one of those things where you play smart, and I was able to put the putt in for birdie so it was good finish. It ended on a high note.”
The pros at the Sony Open in Hawaii were sent scrambling for cover on Saturday after a ballistic missile alert was sent out by mistake.