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.
Mark Selby once again faced Higgins in the first round and this time caused a huge upset by defeating the reigning Grand Prix and Masters champion 10–4, before being eliminated in the next round by Mark Williams. In the 2007 World Championship, Selby beat Stephen Lee 10–7 in the first round, having won eight successive frames from being 5–0 behind. He then defeated former World Champion Peter Ebdon 13–8, with five centuries (including three-in-a-row) to reach the quarter-finals. In the quarter-final, he beat Ali Carter 13–12, from 11–8 up and 11–12 down, in a match that lasted well over nine hours. He