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
Marathons at the Olympics are 2:06:32 hours for men, set by Samuel Wanjiru in 2008, and 2:23:07 hours for women, set by Tiki Gelana in 2012. The men's marathon world record has been improved several times at the Olympics: in 1908, 1920, and then at successive Olympics by Abebe Bikila in 1960 and 1964. Abebe Bikila and Waldemar Cierpinski are the only athletes to have won two Olympic gold medals in the marathon. No athlete has won more than two medals of any colour. Ethiopia has won the most gold medals in the event, with six, while the United States has the greatest medal