Upon qualifying for the Canadian National Wheelchair Rugby team, Willsie made his Paralympic Games debut in
2000. The team came fourth, the first international showing where the team did not medal. He remained as captain for the
2004 Summer Paralympics, where he won a silver medal. The teams' experience during the Games was captured in the documentary
Murderball, which was nominated for the
Academy Award for Best Documentary Feature. Willsie returned to Team Canada for the
2008 Summer Paralympics, where he helped them win a bronze medal. As a result of his athletic achievements, Willsie's hometown recreation centre included a purpose-built training facility used by Willsie and his team. After winning another silver medal at the
2012 Summer Paralympics, Willsie was the recipient of the
Queen Elizabeth II Diamond Jubilee Medal. In 2017, Willsie and
Garett Hickling became the first-ever rugby players to have their jerseys retired by the Canadian Wheelchair Sports Association. ==References==