Charlotte Pratt scored a team-leading three goals for UCLA in the title game against Stanford.
UCLA advanced to the NCAA Championship match with a 9-5 win over California on Saturday.
UCLA (25-2) earned a 9-2 win over UC San Diego (19-19) on Friday afternoon at Stanford.
Molly Cahill was a key player on UCLA's 2007 NCAA Championship Women's Water Polo team.
No. 1-ranked UCLA (24-2) will take on UC San Diego (17-11) on Friday afternoon at Stanford.