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
Australia at the 2012 Summer Olympics in rowing, and four in sailing. Nine Australian athletes won more than a single Olympic medal in London, while 11 of them managed to claim their Olympic titles for the first time. From the twenty-three sports played by the athletes, fourteen of them contained at least a single Olympic medal. With the absence of baseball and softball at the Olympics, Australia's team-based athletes proved successful in London, as the field hockey teams and the women's basketball team each won bronze medals. For the first time since 2000, Australia did not win an Olympic gold medal in rowing. Among the nation's