 On 24 May 2009, Walton hit another 9 darter at the Antwerp Open in the final against Drik Beni.The 9 darter came in the third leg and he went on to win the game 4–0, only to go out the next round to Joey ten Berge in the last 32.Walton was unseeded for the 2011 World Championship, but beat 16th seed Dave Prins 3–1 in the first round before being defeated by Martin Adams 4–3 in a sudden death leg.