Day was beaten in the second round once and first round three times in the opening four ranking events of the 2013–14 season, but then reached the quarter-finals for the first time in over a year at the International Championship.&lt;ref name="2013/14"&gt;&lt;/ref&gt; Day won the first frame against Joe Perry but was thrashed 6–1. He went a stage further at the German Masters and, in an attempt to play in his first ranking final since 2008, he came from 5–3 down against Ding Junhui to level the match, but lost the deciding frame. A trio of second round losses and a first round defeat in the China Open followed. At the World Championship, Stephen Maguire levelled the scores from 8–4 and 9–6 down in the first round, but Day won the final frame for a final score of 10–9, and advanced to the second round. His season then ended when he lost 13–7 to Judd Trump, but he did increase his ranking by 10 places to world number 21, his highest finish for four years.