Kammala jumla mai zuwa: Chartier ya buga wasan hockey na matasa a gasar Hockey ta Yamma (WHL) don Saskatoon Blades da Prince George Cougars. An zabi Chartier a matsayin na 199 a cikin jerin
1999 National Hockey League (NHL) shigarwa da Edmonton Oilers suka yi. A lokacin kakar wasa ta karshe a WHL (2000-01), an ba Chartier kyautar Bill Hunter Trophy a matsayin WHL's Top Defenceman. Yayin wasa a Prince George, Chartier ya kwashe yawancin lokacinsa tare da Dan Hamhuis na Vancouver Canucks. Bayan kakar 2000-01, Chartier da Hamhuis duk an sanya su a cikin WHL's First All-Star Team.