The PAC Rugby Conference is a college rugby conference composed of four schools from the Pac-12 Conference that compete against each other in Division 1-A Rugby. It was formed in 2012 with six teams, with conference play beginning in February 2013 to compete in Division 1-AA. In 2016, PAC added USC and Stanford and dropped Oregon State, and moved up to D1-A. Despite only recently moving up from D1-AA affiliation, the PAC has historically been one of the strongest conferences in college rugby, with five of its members consistently ranked in the Top 25 overall. The PAC Rugby Conference began play on February 2, 2013, with Cal beating Arizona State at Witter Field in Berkeley.