[6][7] The WPBSA deducted two ranking points from Alex Higgins's total for his behaviour at Herringthorpe Leisure Centre, Rotherham on 24 February 1981.
[8] Higgins had arrived late for the second session of an exhibition match against Davis, reportedly because he was playing Space Invaders.
[9] The top sixteen players in the rankings were seeded into the 32-player first round of the main competition for the 1982 World Snooker Championship.
[5] Janice Hale, a snooker reporter for The Daily Telegraph, wrote that the system, with points accumulated across three years, gave established players an advantage.
[11] This method, in Karnehm's own assessment, produced rankings "every bit as unfair and inconsistent as the official ratings list".