Guor Marial foi o último a entrar no estádio olímpico de Londres com a bandeira do comité.
O Sudão Sul ainda não tem organização olímpica, logo o maratonista teria de pela bandeira do Sudão.
“Never,” he said of his refusal to run for Sudan. “For me to even consider that is a betrayal. My family lost 28 members in the war with Sudan. Millions of my people were killed by Sudan forces. I can only forgive, but I cannot honor and glorify a country that killed my people… The fact that I will be in the Olympics means a lot not just to me, but to my country, which has gone through so much. Even if I am not going to carry or wear the flag, I will be the flag of my nation. South Sudan will be in my heart.”