Walton made history at the 2007 Winmau World Masters in Bridlington by hitting a televised nine dart finish. It was the first time a player had hit a nine-darter in the televised stages in the 34-year history of the event (Chris Mason achieved one in the preliminary round a few years previously), and was the first on BBC television since Paul Lim's historic World Championship feat in 1990. Walton's 2008 campaign was hampered by a shoulder injury but despite sliding down the world rankings, he entered the 2009 BDO World Championship as the number 15 seed. He won through an emotional first-round game against his friend Shaun Greatbatch who was battling bone marrow cancer. He then caused a major shock by beating defending champion Mark Webster 4–0 in the second round. He then played Hankey in the quarter final, a repeat of the 2001 Embassy Final which Walton won. Hankey avenged the earlier loss with a 5–1 win, and went on to win the championship. 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. In the 2010 Six Nations Cup tournament held in Sligo. Walton representing England, hit his third 9 darter against Dave Smith-Hayes of Wales. This rare achievement in a single leg format of the team event has, as yet, not been equalled. 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. The match has already been touted as one of the best in the tournament's history. In 2011 season, he retained the English Masters beating Ross Montgomery in the final. Walton failed to qualify for the 2014 BDO World Darts Championship, the first time since 2000 he did not appear at the event.