Allen lost in the last 16 of the Paul Hunter Classic and the European Masters 4–3 to Thepchaiya Un-Nooh and 4–2 to Ronnie O'Sullivan respectively. He made three centuries to eliminate Mark Selby 6–5 at the inaugural China Championship 5–4, but was then heavily beaten 9–3 by John Higgins. A week later he defeated Selby by the same scoreline and stage at the Champion of Champions, before losing 6–2 to O'Sullivan.