This is a list of the main career statistics of Belgian professional tennis player Elise Mertens since her professional debut in 2010. So far, Mertens has won seven WTA singles titles and 16 doubles titles, including three Grand Slam doubles titles, as well as one doubles title at WTA 125 tournaments and 11 singles titles and 13 doubles titles on the ITF Circuit. She reached a career-high WTA singles ranking of No. 12, while in doubles, she is the world No. 1. Career achievements Mertens made her WTA Tour debut at the 2015 Copa Colsanitas, in the doubles event. The following year, she started with title at the Auckland Open, partnering with An-Sophie Mestach. In June of the same year, she made her singles debut at the WTA Tour at the Rosmalen Championships as a qualifier. At the 2016 Wimbledon, she made her Grand Slam main-draw debut in doubles, and then at the 2016 US Open, she done it also in singles. Mertens started into the 2017 season, winning her first title in singles at the Hobart International, defeating Monica Niculescu. In April 2017, she reached another WTA Tour final, but this time finished runner-up at the Istanbul Cup, losing to the final to Elina Svitolina. At the 2017 French Open, she recorded her first Grand Slam match win, defeating Daria Gavrilova in the first round. In October 2017, she recorded her first top-10 win over world No. 10, Dominika Cibulková, in the first round of the Premier Mandatory-level China Open. The 2018 season was of big improvements for Mertens. She had strong start, defending her title at the Hobart International, after she defeated Mihaela Buzărnescu. There she also won title in doubles. She followed this with her first and so far only Grand Slam semifinal in singles at the Australian Open. There, she also defeated world No. 4, Elina Svitolina, in order to reach semifinal. In April, she continued with good performances, winning titles in both singles and doubles at the Ladies Open Lugano. Soon after that, she won Morocco Open, after defeating Ajla Tomljanović in the final. During the grass season, Mertens had success in doubles. First, she won Rosmalen Championships with Demi Schuurs and then reached final of the Premier-level Birmingham Classic, also with Schuurs. During the USA hardcourt Tour, she stand out more in singles. First, she reached semifinal of the Premier-level Silicon Valley Classic and