He took the first of sixteen spots available to non-qualified players through the 2013 ProTour Order of Merit for the 2014 World Championship and faced Paul Nicholson in the first round, losing 3–0. He entered the top 32 in the world rankings after the event. Kellett was beaten 9–4 by Terry Jenkins in the third round of the UK Open and failed to qualify for another PDC major during the rest of the year. His only quarter-final appearance came at the 12th Players Championship where he lost 6–1 to Michael van Gerwen.