Martina Hingis is a person.
The 2016 Summer Olympics ( Jogos Olímpicos de Verão de 2016 ) , officially known as the Games of the XXXI Olympiad and commonly known as Rio 2016 , was a major international multi-sport event held in Rio de Janeiro , Brazil , from 5 August to 21 August 2016 . The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . Martina Hingis ( born 30 September 1980 ) is a Czechoslovak-born Swiss professional tennis player who spent a total of 209 weeks as the singles world No. 1 . During her comeback , Hingis also won all four Grand Slam mixed doubles tournaments alongside Leander Paes and a silver medal partnering Timea Bacsinszky at the 2016 Summer Olympics in Rio de Janeiro . An Olympic medal is awarded to successful competitors at one of the Olympic Games .