Russia at the 2012 Summer Olympics and basketball teams won gold and bronze medals, respectively. For the first time in its history, Russia won Olympic gold medals in judo. Among the nation's medalists were Aliya Mustafina, who emerged as one of the most successful Russian gymnasts in history, with a total of four Olympic medals at a single games, and Maria Sharapova, who won silver in the women's tennis singles against United States' Serena Williams. Anastasia Davydova became the most successful synchronized swimmer in Olympic history, with a total of five gold medals, while her compatriots Natalia Ishchenko and Svetlana Romashina managed to win gold medals
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,