The Golden Bears have won 27 total championships since the national collegiate championships for rugby began in 1980. Current head coach and Cal alumnus Jack Clark took over the team in 1984, and has achieved prolonged success, leading the Bears to 23 national titles, including twelve consecutive championships from 1991 to 2002 and five more consecutive titles from 2004 to 2008. Cal also competes for the "World Cup," which is awarded to the winner of the annual series between Cal and the University of British Columbia.