Dave Martin (snooker player) the quarter-finals of the Mercantile Credit Classic in 1988, beating Doug Mountjoy 5-4, and Jimmy White 5-2, before losing 1-5 against Tony Knowles. His last appearance in the main stages of a tournament came at the 1992 UK Open, where he lost in the first round 3-9 to Jimmy White. Dave Martin (snooker player) Dave Martin (born 9 May 1948) is a retired English snooker player. Martin turned professional in 1980 by beating Eugene Hughes 9–6 in the final of the 1980 Professional Ticket Event, and reached the first round of the World Championship the same season, losing 4-10 to
David John (snooker player) a full-time return to the game at a professional level. After a 13-year absence John earned a place on the main tour by coming through Q-School in 2016. He beat Zak Surety 4–1 in the final round of second event to secure a two-year tour card. In May 2018 he was suspended from the tour for suspected match fixing, although he had not accrued enough ranking points to stay on the main tour in any case. David John (snooker player) David "Dai" John (born 24 November 1984 in Bridgend, Glamorgan) is a Welsh professional snooker player. John drew attention in