Rubuta ci gaba ga wannan sakin layi - McDavid ya taka leda a Kanada a gasar zakarun duniya na 2014
inda kungiyar ta kammala a matsayi na hudu. Ya kuma wakilci Kanada a Gasar Zakarun Duniya ta 2015 a Toronto da Montreal inda suka lashe zinare a ranar 5 ga Janairu, 2015. Ya yi aiki a matsayin daya daga cikin kyaftin din biyu na tawagar. A cikin wasanni 7 da McDavid ya buga a gasar ya ci kwallaye 3 kuma ya jagoranci gasar 8. An kira shi zuwa ga tawagar tauraron gasar.