Brendan Sexton began competing in triathlon when he was 15 in his home town of Maitland, NSW. Having swum at his local pool since he was seven his parents encouraged him to give the junior triathlon event a go and he never looked back. He made his first national team two years later at the age of 17. He began to make a name for himself in 2011, placing fourth in the World Championships in Sydney, winning the Monterrey World Cup in Mexico and coming runner up in both the Mooloolaba World Cup and Oceania Cup in New Zealand. He continued to perform strongly and was selected to make his Olympic debut in London.
After coming out of the water in London in 47th position, Sexton advanced to 35th position at the end of the bike leg, which he held until the end of the race. He finished 4:11minutes behind gold medallist Alastair Brownlee of the United Kingdom. Brownlee’s brother Johnathan finished with the bronze medal as Spain’s Javier Gomez claimed the silver medal.