Grace Na and Marissa Chow tied for fourth place to lead the Waves.
Pepperdine is in the running for a team title with #1 USC and #2 UCLA.
The Waves are back in action on Feb. 25-26 at the UC Irvine Invitational.
Pepperdine will finish up with the third round on Tuesday in Palos Verdes.
Pepperdine, ranked sixth by Golfweek/Sagarin, continues play in Palos Verdes on Monday and Tuesday.
Jeff Golden photos from the first round of the Northrop Grumman Regional Challenge.
AMATEUR/JUNIOR GOLF: Was the third-ranked junior in Paraguay in 2012 and ranked fifth among all women's golfers ... Won the 2012 Bob Jones Invitational at Yorba Linda ... Finished second at the 2012 Paraguayan Match Play Championship ... Took 10th place at the 2012 AJGA Junior Challenge ... Has represented Paraguay at various South American tournaments.
HIGH SCHOOL: Graduated from Asuncion Christian Academy in Asuncion, Paraguay, in 2013.
PERSONAL: Born in Pasadena, Calif., and moved to Paraguay at the age of 3 ... Daughter of Osvaldo and Veronica Arza ... Has one sister, Giulianna ... Chose to attend Pepperdine because "I felt it was the place where God called me to be. Every door opened up at Pepperdine and since the moment I heard of it, it became my dream."
FAVORITES: Enjoys watching movies, reading, eating, having new adventures and being involved in church activities ... Favorites include the Centenarioo Club in Paraguay (golf course), The Help (book), Silver Linings Playbook (movie), The Big Bang Theory (TV show), pasta (food) and soccer (sport other than golf) ... Favorite thing about golf is "it is challenging in every aspect, and wanting to overcome the challenges makes me love it, because the challenges are where I learn the most."