Career
Vorthoren made his debut in the Eredivisie in the away-match against Feyenoord (0–2 loss) on 1 September 2007. He finished the season having played 19 Eredivisie games. The following season he played less, due to an injury.
Although there had been rumours Vorthoren would play for K.S.V. Roeselare (on loan) for the rest of the season, he stayed with Willem World War II He will move to Football Club Den Bosch at the start of the 2009-2010 Eredivisie season.
Vorthoren played for Netherlands U17 and Netherlands U19.
