CNN —At first glance, winning seems impossibly easy for Diede de Groot; an almost nonchalant habit of 69 consecutive victories, yielding a Golden Slam – all four grand slams and a Paralympic gold medal – in 2021, followed by a calendar grand slam in 2022. De Groot's win at the 2022 US Open completed her back-to-back calendar grand slam. De Groot now plays doubles alongside Van Koot and they have won 11 doubles grand slam titles together. So I know each time it’s getting more difficult to keep up the winning streak.”De Groot celebrates winning her first grand slam title at Wimbledon in 2017. So far, de Groot has won 15 grand slam singles titles and 15 grand slam doubles titles.

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