The tournaments contributing to the 1988/89 rankings were the ranking tournaments held across two seasons, from 1986 to 1988. From the 1986–87 season they were the 1986 International Open won by Foulds; the 1986 Grand Prix and 1987 British Open both won by White; and the 1986 UK Championship, 1987 Classic and 1987 World Championship all won by Davis.