Cika wannan jumla: A shekara mai zuwa, a
2015 IIHF World Junior Championship, Demko shi ne mai tsaron gida na farko, yana farawa a cikin wasanni 7 na 8. Duk da kawar da ƙungiyar a cikin Quarterfinals, Demko ya gama na uku a gasar tsakanin masu tsaron gida tare da 1.74 GAA da.938 adana kashi.