Mark Selby Open, losing 1–4. Selby won his first ranking title of the 2017/18 season by retaining the International Championship after surviving a fightback from Mark Allen, who trailed 3–8 and 7–9 in the final but the Englishman prevailed 10–7. As 2017 World Snooker Champion, Selby automatically qualified for the 2017 Champion of Champions. However, he lost in the quarter-finals to Luca Brecel by a scoreline of 4–6. At the 2017 Shanghai Masters, Selby crashed out to 2011 finalist Mark Williams in the quarter-finals 3–5. Selby's reign as the UK champion came to an end with a 3–6 defeat to Scott Donaldson
World Snooker Championship Mark Selby won the world title in 2014 by beating defending champion Ronnie O'Sullivan 18–14 in the final, having trailed 5–10. Selby won a record £300,000 for his victory; the prize exceeding the previous highest of £270,000 in 2003, although prize money for first-round losers remained at £12,000. Selby lost 9–13 in the second round of the 2015 Championship to Crucible debutant Anthony McGill. Stuart Bingham won the title, defeating Ronnie O'Sullivan 13–9 in the quarter-finals, Judd Trump 17–16 in the semi-finals, and Shaun Murphy 18–15 in the final to win the first world title of his 20-year professional career.