Argentina at the Olympics created and recognized in 1923. The country had successful performances during the period 1924-1952, claiming at least one gold medal in every edition. Starting with the 1956 Summer Olympics, Argentina suffered a gradual overall decline, a situation that reached its most critical point in the 1976 and 1984 Summer Olympics. In those Games, Argentina did not win any medals. At the 2004 Summer Olympics in Athens, the country claimed gold medals for the first time after 52 years. Argentine athletes have won a total of 74 medals at the Summer Olympic Games. 24 of these medals have come in boxing,
Australia at the 2012 Summer Olympics lost his Olympic record to France's Renaud Lavillenie, after failing to clear the height in the finals. Australia left London with a total of three track and field medals at the Olympics. Sprint hurdler and pre-Olympic favorite Sally Pearson became the first woman to win the nation's gold medal in the track and field since Cathy Freeman in 2000. Long jumper Mitchell Watt, competing at his first Olympics, became the fourth man to claim the silver medal in that event. Jared Tallent was initially presented with the silver medal for the men's 50 km race walk, matching the silver medal