The Pioneers previously competed in the California Pacific Conference (Cal Pac) of the National Association of Intercollegiate Athletics (NAIA) from 1998–99 to 2008–09.

Cal State East Bay has produced over 160 All-Americans and has won 77 conference championships in NCAA Divisions II and III, as well as in the National Association of Intercollegiate Athletics.

In 1979 and 1980 the women's cross country team won AIAW Division III national championships.

[4] The CSU East Bay Pioneers competed in the NCAA Tournament across 12 active sports (6 men's and 7 women's) 70 times at the Division II level.

[5] The Pioneers of CSU East Bay earned 2 NCAA team championships at the Division II level.