Griffiths took the Pot Black title in 1984 and won the Welsh Professional Championship again in 1986 and 1988. He again reached the final of the World Snooker Championship in 1988, defeating Steve Longworth, Willie Thorne, Neal Foulds and Jimmy White, to reach the final, which he lost to Davis, 11–18. The players had been level at 8–8 after the first of two-day's play in the final, and Terry Smith of the "Daily Telegraph" commented after the match that "Griffiths knows he produced his best snooker since he became world champion in 1979, and still lost."