Diede de Groot

Diede de Groot (pronounced [ˈdidə də ˈɣroːt] ; born 19 December 1996) is a Dutch professional wheelchair tennis player who was world No. 1 in both singles and doubles. De Groot is a 43–time major champion, having won a record 24 titles in singles and 19 in doubles. De Groot had a three-year, 145-match, winning streak in singles, from a defeat in February 2021 to Yui Kamiji until a defeat in May 2024 to Li Xiaohui. During this streak she achieved the first calendar-year Super Slam in tennis history by winning all four major titles, the Paralympic gold medal, and the Wheelchair Tennis Masters title in women's singles in 2021. The following year, she became the first player in any discipline of tennis to defend the Grand Slam and win all four majors in two consecutive years, and did so yet again in 2023. At the 2026 French Open, she became the first player ever to achieve the sextuple career Grand Slam. In doubles, de Groot completed the Grand Slam in 2019, partnering Aniek van Koot. Apart from her major titles, de Groot has won multiple Wheelchair Tennis Masters titles between 2016 and 2018 in both singles and doubles, as well as gold medals in both disciplines at the 2020 Tokyo Paralympics. She was part of the Dutch team that won the World Team Cup on eight occasions between 2011 and 2019.