The Toughest Sport in the World- BOXING! The results are in! The toughest sport in the world is…BOXING. Don’t take our word for it. Read how and why sports scientists from the United States Olympic Committee ranked boxing as the toughest sport in the world. Boxing Ranked as the Toughest Sport in the World be110fitness2018-01-15T14:18:31+00:00 Share This Story, Choose Your Platform! FacebookTwitterPinterestEmail