Darts is a widely popular sport in England; a professional competitive sport, darts is a traditional pub game. The sport is governed by the World Darts Federation, one of its member organisations is the British Darts Organisation (BDO), which annually stages the BDO World Darts Championship, the other being the Professional Darts Corporation (PDC), which runs its own world championship at Alexandra Palace in London. Phil Taylor is widely regarded as the best darts player of all time, having won 187 professional tournaments, and a record 16 World Championships. Trina Gulliver is the ten-time Women's World Professional Darts Champion of the British Darts Organisation. Another popular sport commonly associated with pub games is Snooker, and England has produced several world champions, including Steve Davis and Ronnie O'Sullivan.