Cal State East Bay Pioneers

The Cal State East Bay Pioneers are the athletic teams that represent California State University, East Bay, located in Hayward, California, in intercollegiate sports as a member of the Division II level of the National Collegiate Athletic Association (NCAA), primarily competing in the California Collegiate Athletic Association (CCAA) for most of their sports since the 2009–10 academic year; while its women's water polo teams compete in the Western Water Polo Association (WWPA). The Pioneers previously competed in the California Pacific Conference of the National Association of Intercollegiate Athletics (NAIA) from 1998–99 to 2008–09.