Swimmers enter the water on Copacabana BeachCompetitors leave from the start of the mens triathlon during the Aquece Rio Triathlon at Copacabana beach on August 2, 2015 in Rio de Janeiro, Brazil
Australian triathlete Jacob Birtwhistle on Copacabana Beach Jacob Birtwhistle of Australia leaves the water during the men's triathlon ITU World Olympic Qualification Event at Copacabana beach on August 2, 2015 in Rio de Janeiro, Brazil.