Career
As a junior canoeist, Rubenstein competed in all forms of the sport, from sprints to river marathons. He has been competing internationally at senior level since 2002. World Marathon Championships
Two years prior in 2004 Shaun placed third at the International Coach Federation Canoe Marathon World Championships in Bergen, Norway.
Beijing Olympics 2008
Rubenstein competed at the 2008 Summer Olympics in Beijing, but was eliminated in the semifinals of both the K-1 500 m and the K-1 1000 m events.