The San Francisco Pioneers played in the Women’s Professional Basketball League (WBL) for two seasons from 1979-81. They played their home games at the San Francisco Civic Auditorium. They would go 18-18 in their first season and pull a surprise upset over the defending champion Houston Angels in the first round of the playoffs. In their second season, they would go 14-22. However, the league shutdown at the end of the 1981 campaign and the Pioneers went with it.