Nyorera kuenderera mberi kweiyi ndima - Achienda padanho reU20, Reinhart akawana nzvimbo nechikwata chenyika chechidiki che2014 World Junior Championships
. Munun'una wake Griffin akaitawo chikwata, uye vakava vatatu vaviri vehama kuti vatambe Canada paWorld Junior Championships. Reinhart naAaron Ekblad ndivo chete vatambi vaviri paCanada roster vanokodzera 2014 NHL Entry Draft. Reinhart akarekodha zvibodzwa zviviri uye matatu anobatsira mumitambo mitatu yekutanga yemutambo, asi akachengetwa asina zvibodzwa kune yakasara yemutambo. Canada yakarasikirwa nemutambo wemenduru yebronze neRussia 2<unk>1 uye yakapedza yechina. Sam Reinhart akamiririrawo Chikwata cheCanada pa2015 World Junior Ice Hockey Championship. Chikwata chakakunda goridhe sezvo Sam akashanda semumwe wevatungamiriri vaviri vechikwata, mumwe ari Connor McDavid. Reinhart akarova zvibodzwa zvinokunda mutambo vachipesana nechikwata cheRussia mumutambo weGold Medal, waive wake wechishanu wemutambo. Reinhart akapedza aine zvibodzwa zvishanu uye mapoinzi gumi nerimwe achitungamira vatambi vese muzvinangwa nemapoinzi.