Mezue ahịrịokwu na-esonụ: Demko nwetara nrite ọlaọcha dịka onye otu mba United States n'okpuru afọ 18 na 2013 IIHF World U18 Championships. Ọ bụkwa onye otu mba Amerịka n'egwuregwu bọọlụ ndị ntorobịa n'asọmpị ahụ.
2014 IIHF World Junior Championship, ma bụrụ onye nkwado nye onye ibe Hockey East Goalkeeper Jon Gillies nke Providence.