King made an impressive start to the new season when he reached the Quarter Final of the 2010 Shanghai Masters. King was too strong for qualifier Joe Delaney in the first round, winning 5–3. The same scoreline saw him overcome Peter Ebdon in the next round but King was then beaten comfortably by Mark Selby 5–1. However his lack of form in the following ranking events made him fall out of the top 16 after the 2011 Welsh Open.