Zachary "Zach" Stone is a Canadian

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 professional snowboarder

Snowboarding

Snowboarding is a sport that involves descending a slope that is covered with snow on a snowboard attached to a rider's feet using a special boot set onto mounted binding. The development of snowboarding was inspired by skateboarding, sledding, surfing and skiing. It was developed in the U.S.A...

 and World Championship medalist. Stone won a silver medal at the 2011 FIS World Championships

FIS Snowboarding World Championships 2011

The FIS Snowboarding World Championships 2011 was held between January 14 and 22 in La Molina and Barcelona Spain.All the competitions were held in La Molina, except the big air competition, which was held in Barcelona.-Media and marketing:...

. In January 2011 the FIS Doping Panel tested Stone positive for tetrahydrocannabinol

Tetrahydrocannabinol

Tetrahydrocannabinol , also known as delta-9-tetrahydrocannabinol , Δ1-THC , or dronabinol, is the main chemical psychoactive substance found in the cannabis plant. It was first isolated in 1964. In pure form, it is a glassy solid when cold, and becomes viscous and sticky if warmed...

 use, which is a prohibited by the World Anti-Doping Agency

World Anti-Doping Agency

The World Anti-Doping Agency , , is an independent foundation created through a collective initiative led by the International Olympic Committee . It was set up on November 10, 1999 in Lausanne, Switzerland, as a result of what was called the "Declaration of Lausanne", to promote, coordinate and...

. Stone is currently unable to participate in any FIS or National Ski Association event until January 2012, pending appeal.

External links

• FIS bio