Allen began the season with second round losses to Mark Williams at the Wuxi Classic and Judd Trump in the Shanghai Masters.&lt;ref name="2012/13"&gt;&lt;/ref&gt; His first title of the year soon followed at the minor-ranking Antwerp Open, by making three centuries in a 4–1 win over Mark Selby in the final. Allen then beat Robert Milkins and Cao Yupeng both 6–2 in the inaugural International Championship, before being edged out 5–6 by Trump in the quarter-finals. Marco Fu at the UK Championship beat Allen 6–3. At the Masters Allen came past Mark Davis 6–2, but was then narrowly beaten 5–6 by Neil Robertson in a high-quality encounter in the quarter-finals. At the Snooker Shoot-Out, the tournament where each match is decided by a 10-minute frame, Allen won through to the final where he lost to Martin Gould. He suffered successive second round defeats at the German Masters and the Welsh Open to Barry Hawkins and Ding Junhui respectively, before he travelled to China in an attempt to defend his World Open title from 2012. Allen comfortably won every match he played at the event as he beat Ryan Day 5–2, Robert Milkins 5–2, Ricky Walden 5–1, John Higgins 6–2 and Matthew Stevens 10–4 in the final to capture his second ranking title. Allen's Antwerp Open win from earlier in the season helped him finish eighth on the Players Tour Championship Order of Merit to qualify for the Finals where he lost 3–4 in the quarter-finals to Ding, who made a 147 and two further centuries during the match. Robertson beat Allen 5–1 in the second round of the China Open, and then Allen was the victim of a first round shock at the World Championship for a second year in a row as he lost to world number 30 Mark King 8–10, having led 8–6. Despite this, he climbed five spots in the rankings during the year to finish it ranked world number seven.