Buuxi weedhan soo socota: Hart ayaa markii xigtay loo doortay inuu Canada u matalo 2017 World Junior Ice Hockey Championships. Waxaa loo keenay goolhayaha bilowga ah, waxaa laga saaray ka dib markii uu ogolaaday seddex gool 17 toogasho oo uu Ruushku u dhaliyay waxaana mar kale loo yeeray kaliya markii Connor Ingram uu ka tanaasulay laba gool seddex toogasho Sweden. Ka dib markii uu sameeyay 31 badbaadinta ciyaarta bilada dahabka ah ee ka dhanka ah Mareykanka, Hart wuxuu ka tanaasulay gool toogasho ah oo uu sameeyay Troy Terry si uu Kanada u siiyo bilada lacagta ah. Waxaa mar kale loo doortay, Michael DiPietro markan,
Horyaalka Hockeyga Barafka ee Dhalinyarada Adduunka 2018. Ka dib markii uu 23-ka badbaadiyay ciyaarta ka dhanka ah Jamhuuriyadda Czech ee ciyaarta tartanka ka hor, Hart waxaa loogu magac daray ciyaaryahanka ugu horreeya ee Kanada. Kanada waxay ka adkaatay Sweden ciyaartii bilada dahabka, Hart wuxuu ku soo gabagabeeyey tartanka rikoor 5<unk>0<unk>1, isagoo ku dhejiyay rikoorka xirfadda adduunka ee Kanada 8<unk>0<unk>2.