Ramba uchiverenga ndima ino - Musi waJune 28, 2013, Gauthier akakokwa kumusasa weCanada National Junior Team yezhizha. Mushure mekuita roster, aive nhengo yechikwata cheCanada chakahwina menduru yegoridhe pa2013 IIHF World U18 Championships
. Gore rakatevera, akakokwa zvakare kumusasa wekuvandudza wezhizha weCanada National Junior Team pamberi pe2014 World Junior Ice Hockey Championships. Pashure pokuita roster yokupedzisira, Team Canada akarasikirwa vari semi-fainari kuna Finland uye akakundikana menduru kuzorwa Russia. Achiri kutamba mumitambo mitanhatu, Gauthier akarekodha rubatsiro rumwe uye akapedza ne -2 Plus<unk>minus.