[4] The other departing member, Seattle, was an independent before joining the Western Athletic Conference (WAC) for all sports, including softball, in 2012.

This gave that conference the six softball-sponsoring members it needed to sponsor the sport, and on September 13, 2012, the WCC announced that it would start softball competition in the 2013–14 school year.

[7] The two remaining schools, Utah Valley and Cal State Bakersfield, had been linked with moves to the WAC as softball affiliates.

However, after a massive wave of departures from that conference set for 2013 placed its future existence in doubt, the WAC invited both to join as full members beginning in 2013–14, with both accepting.

[8] Although the WAC sponsored softball, the aforementioned turnover left it with too few softball-sponsoring schools to qualify for an automatic bid to the NCAA championship.

Note: Because NCAA softball is a spring sport, the first season in which each member competed in the PCSC occurred in the calendar year after it joined.