Tuhia he haere tonu mo tenei whitianga - I te Tihema 25, 2018, i whakaingoatia a Comtois hei rangatira mo te roopu rangatahi a Team Canada i a raatau e whakataetae ana i te 2019 World Junior Ice Hockey Championships. Ko ia anake te kaitākaro i hoki mai i te 2018
te kapa toa toa koura. I te Hakihea 26, i eke a Comtois i nga whaainga e wha i te wikitoria 14-0 ki a Denmark i te keemu tuatahi o te whakataetae. I noho a Comtois hei kaitakaro tuarima mai i te Team Canada ki te eke ki nga whaainga e wha i roto i te kemu o te Ao Juniors, ko te mea whakamutunga ko Taylor Raddysh i te tau 2017. Whai muri i te wehenga atu o Kanata mai i te whakataetae, ka whakaatu a Comtois i te takaro me te pokohiwi wehe.