Rejean is the Founder & Head Coach of Pace & Mind(2014), former Coach of Nike Run Club Toronto, and former Head Coach & Creative Director of Adidas Runner Toronto.

A former competitive runner, Rejean started running casually while in the Canadian Army in 2004. He ran a marathon debut of 2:17 in 2011, following it with winning the Canadian Marathon Championships in 2012, and has medaled at the Canadian Half Marathon Championships on four separate occasions.

Coaching has been his main focus since 2013. He builds his athletes training plans with the experience and knowledge he gained over years of working closely with some of the countries top coaches and experts, and while spending months training in Ethiopia with some of the world's best athletes and trainers.