Lengkepan kalimah di handap ieu: Demko meunang medali pérak salaku anggota timnas AS di handapeun 18 taun di 2013 IIHF World U18 Championships. Manéhna ogé anggota timnas junior AS di
2014 IIHF World Junior Championship, sarta mangrupa cadangan pikeun sasama Hockey East kiper Jon Gillies of Providence.