He is a four-time winner of The Brier, the annual Canadian men's curling championship and a three-time World Champion as the lead for the Randy Ferbey team.

Rocque would play in two Alberta provincial championships as a lead for Don Walchuk before joining the Ferbey team by 1999.

In 2019, Rocque finished second in a TSN poll of broadcasters, reporters and top curlers to name the greatest Canadian male lead in curling history.

[2] Marcel Rocque began coaching the Chinese women's team in 2013 and was the coach for China's Men Curling team for the 2014 Winter Olympics held in Sochi, Russia.

His wife Raylene is also a curler, and until the end of the 2009/2010 Season played with Cathy King's team.