CIF Southern Regional D1 Champions 2018
Trinity League Champions 2017 & 2018
The Mater Dei Girls Water Polo Team is one of the top ranked teams in CIF-SS. In addition to their successes this year, they were also League Champions and Finalists for multiple consecutive years from 2009-2014. The Mater Dei Girls Water Polo program offers three teams: Varsity, Junior Varsity and Frosh Soph.