Tuhia he haere tonu mo tenei whitianga - I takaro a Chartier i te hockey rangatahi i te Western Hockey League (WHL) mo nga Saskatoon Blades me Prince George Cougars. Ko Chartier te 199th katoa i te National Hockey League (NHL) 1999 Entry Draft
e ngā Oilers o Edmonton. I tana wa whakamutunga i te WHL (2000-01), i whakawhiwhia a Chartier ki te Bill Hunter Trophy hei Kaihauturu Nui o te WHL. I a ia e purei ana i Prince George, i whakapau kaha a Chartier ki a Dan Hamhuis o te Vancouver Canucks. I muri i te tau 2000-01, i whakaingoatia a Chartier raua ko Hamhuis ki te WHL's First All-Star Team.