Mark Selby of both the Masters and Welsh Open to Ronnie O'Sullivan, but won the Gdynia Open with a 4–1 victory over Martin Gould. Before the World Championship Selby withdrew from the PTC Finals and China Open due to personal reasons. He beat Robert Milkins 10–6, Sam Baird 13–11 and Kyren Wilson 13–8 to face Marco Fu in the semi-finals. Selby drew level at 12–12 thanks to winning a 76-minute frame, the longest in Crucible history and went on to win 17–15 with an excellent snooker on the brown in the final frame. He took a 6–0 lead over Ding Junhui in
Mark Selby Pengfei, Robert Milkins, Ali Carter, and home favourite Ding Junhui, but was defeated 8–10 by Judd Trump in the final. At the 2011 World Championship, Selby set the record for the most century breaks compiled in a world championship match when he made six in his second round tie with Stephen Hendry. It was also a record for a best-of-25 match and took Selby's century tally for the season to 54, setting a new record for the most centuries compiled in a season. Selby's 2011/2012 season began by winning the non-ranking Wuxi Classic with a 9–7 victory over Ali Carter.