William has been crowned WORLD CHAMPION 2012 in snowkiting (board) at the WISSA 2012 held in St-Ignace, Michigan, USA and won a silver medal at the Freestyle At'Traction 2012 (Saguenay- Coupe du Québec).

William has been for five (5) consecutive years, 2007 to 2011, the Snowkite champion at the championship of « Coupe du Quebec/ Quebec Cup » in the snowboard category.