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
2014 World Snooker Championship hours 4 minutes, Mark Selby defeated Neil Robertson 17–15 to reach his second World Championship final. Selby had previously reached the final in 2007, when he lost to John Higgins. During the match, Robertson extended his century break record to 103, but his defeat meant that he lost his world number one position. The two-day final between Ronnie O'Sullivan and Mark Selby was refereed by Brendan Moore. This was the first time that Moore took charge of a World Championship final. In the first session on Sunday afternoon, O'Sullivan took a 5–3 lead, which he extended in the evening session