Complex sentence: Wang Lei, alongside legends Gian Simmen and Rob Kingwell are the ambassadors to help push WSD as the major grass roots event for snowboarding, putting out impressive turnouts of the event year after year since its inaugural event in 2006.
Split into simpler sentences: Wang Lei, alongside legends Gian Simmen and Rob Kingwell are the ambassadors to help push WSD as the major grass roots event for snowboarding. WSD is putting out impressive turnouts of the event year after year since its inaugural edition in 2006.