Bolt. 100m + 200m + 2 world records. Definitely one of the greatest ever participated in the games. He is in the league of great athletes as Carl Lewis and Michael Johnson. Wait, no, he is the first guy in the world that managed to break both records, win both medals in the same event. Oh wait, this is the Olympics too. Holy Shxt. Oh, wait, unlike Johnson and Lewis, he is not a Nike athlete. Ouch. Beast.