Great Britain at the 2016 Summer Olympics having won double gold in the four in 2008 and 2012. Alistair Brownlee became the first triathlete to successfully defend an Olympic title and his younger brother Jonny Brownlee upgraded his London bronze to a silver in the men's triathlon, one of three events with the men's pommel and men's individual sprint where Great Britain finished first and second. No British woman having ever defended an individual Olympic title, Trott, Dujardin, taekwondo-ka Jade Jones and boxer Nicola Adams became the first four British female Olympians ever to successfully defend individual Olympic titles, with Trott becoming the first British female, and
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