Mark Selby with a shock 3–5 defeat to Andrew Pagett in the qualifying rounds of the 2013 Wuxi Classic. The tournament was the first to use a new format that required top-16 players to compete in qualifiers. In minor-ranking tournaments, Selby was runner-up in the Yixing Open, where he lost 1–4 to Joe Perry, and the Rotterdam Open, where he lost 3–4 to Mark Williams. He won the Antwerp Open, defeating Ronnie O'Sullivan 4–3 in the final. In December, in the seventh frame of his UK Championship semi-final against Ricky Walden, Selby compiled snooker's 100th officially recognised maximum break in professional competition.
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