Robertson won a silver medal in snowboard cross at the 2010 Winter Olympics in Vancouver and was considered somewhat of an unknown and surprise medalist.

[2] He participated in the 2010 Winter Olympics in Vancouver where he won the Silver Medal in the snowboard cross.

[3][4] Robertson was in contention for the gold and was leading at the final corner when he was passed by Seth Wescott.

While attending a training camp in September 2010 Robertson suffered another concussion in New Zealand, this effectively ended his career and he announced his retirement from competition some time later.

I didn't want an injury to end my career, but after two years of struggling with concussion symptoms and trying to recover again and again, I had to make the best decision for my long-term health.