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
2016 World Snooker Championship frames were shared until Selby won the final two frames to win the match 17–15. The 32nd frame also lasted more than an hour. Ding Junhui was the first qualifier to contest the final since Judd Trump was beaten by John Higgins in 2011. The Chinese player also became the first Asian finalist at the Crucible, and the match drew a peak television audience of over 42 million in China on CCTV-5. In the first session of the final, Mark Selby took a 6–0 lead, before Ding won the last two frames of the session to leave Selby 6–2 ahead.