Tulis terus kanggo paragraf iki - Walman main hoki junior karo Toronto Jr. Canadiens ing Ontario Junior Hockey League (OJHL) sadurunge nindakake hoki perguruan tinggi karo Providence College of the Hockey East. Sadurungé musim anyar karo Friars, Walman dipilih ing Draft Entry NHL 2014
ing babak katelu, 82nd sakabèhé, dening St. Louis Blues.