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.”
After missing the cut at Shinnecock Hills on Friday, Rory McIlroy would just like to put his miserable US Open experience behind him.
Justin Rose and Ian Poulter vowed to remain positive going into the weekend at the US Open despite trailing Dustin Johnson by five shots.
Dustin Johnson moved four shots clear at the US Open after challenger Ian Poulter fell away with a dreadful finish to his round.
Tommy Fleetwood made a big surge up the leaderboard at the US Open after producing the lowest round of the tournament so far.
On a testing opening day at the US Open, world number one Dustin Johnson demonstrated his prowess as one of four co-leaders.