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