Canada at the Summer Olympics became the first Canadian Summer Olympian to win a medal in four straight Olympics. After George Hodgson won two gold medals in the 1912 Stockholm games, it would be 72 years before Alex Baumann became the second Canadian swimmer to win Olympic gold, when he won both individual medley events in world record time in the 1984 Los Angeles games. Victor Davis (1984), Anne Ottenbrite (1984), Mark Tewksbury (1992) and Penny Oleksiak (2016) are the only other Canadian swimmers to win gold medals. In 2004, Canada failed to win a medal of any colour in swimming for the first time
Nigeria at the Olympics to using performance-enhancing drugs, their Nigerian rivals were awarded the gold medal. Nigeria also won a medal in the heavyweight division of taekwondo at the 1992 Summer Olympics; as this was only a demonstration sport, Emmanuel Oghenejobo's silver did not count as an official win. The Nigeria Olympic Committee, the National Olympic Committee for Nigeria, was created in 1951. Nigeria at the Olympics Nigeria first participated in the Olympic Games in 1952, and has sent athletes to compete in every Summer Olympic Games since then, except for the boycotted 1976 Summer Olympics. The nation participated in the Winter Olympic Games