Lee enjoyed further success on the PTC calendar as he reached another semi-final, to finish 14th on the Order of Merit and therefore qualified for the last 24 of the Finals. It was in the finals where Lee won his first ranking title for six years as he dropped just three frames during the tournament, including 4–0 whitewashes over Mark Selby and in the final versus Robertson, where Lee became the first player to beat the Australian in a ranking event final. Lee's form in the second half of the season continued into the China Open as he registered his third ranking event semi-final of the year by defeating Judd Trump again, but could not feature in three successive finals as he lost 2–6 to Stephen Maguire. His season did finish in disappointment though as he was beaten in the first round of the World Championship 6–10 by Andrew Higginson. Nevertheless, Lee climbed 10 places in the world rankings to end the season at number 8, the highest he has been since 2003.