Zach Stone Athlete
Zachary "Zach" Stone (born 6 September 1991 in Collingwood, Ontario) is a Canadian professional snowboarder and World Championship medalist. Stone won a silver medal at the 2011 FIS World Championships. In January 2011 the FIS Doping Panel tested Stone positive for tetrahydrocannabinol use, which is a prohibited by the World Anti-Doping Agency. Stone is currently unable to participate in any FIS or National Ski Association event until January 2012, pending appeal.