The World Professional Billiards and Snooker Association (WPBSA), the governing body for professional snooker, first introduced a ranking system for professional players in 1976, with the aim of seeding players for the World Snooker Championship. The reigning champion would be automatically seeded first, the losing finalist from the previous year seeded second, and the other seedings based on the ranking list. Initially the rankings were based on performances in the preceding three world championships.

John Spencer was an English professional snooker player. One of the most dominant players of the 1970s, he won the World Snooker Championship three times, in 1969, 1971 and 1977. He worked as a snooker commentator for the BBC from 1978 to 1998, and served for 25 years on the board of the sport's governing body, the World Professional Billiards and Snooker Association (WPBSA), including a stint as chairman from 1990 until his retirement from the board in 1996.