Van der Voort reached the third round of the 2009 PDC World Championship. He defeated Hungary's Nándor Bezzeg 3–0 in sets and then defeated number 14 seed Colin Osborne in the second round 4–1 assisted by some superb finishes. He eventually went out to number 3 seed Wade losing 4–0 in the last 16. His results moved him to the brink of the top sixteen, ranking in 17th and having passed Roland Scholten on the PDC Order of Merit, van der Voort was the second-highest ranked Dutchman in the rankings, behind van Barneveld.