Ysaline Bonaventure

Bonaventure lost in the first round of qualifying at the 2015 Australian Open and French Open. At the 2015 Wimbledon Championships, she also lost in the first round of qualifying, beaten in three sets by Michelle Larcher de Brito. She reached the third round of qualifying at the US Open of that year.

She won two WTA Tour doubles titles that year, showing her ability in doubles, her focus slowly shifting towards singles after 2015. She subsequently reached a career-high ranking in doubles of No. 57 in February 2016.

She lost again in the third and final round of qualifying at Roland Garros in 2018, before making her major main-draw debut in 2019, at the Australian Open and then at Wimbledon. She also reached as a qualifier the quarterfinals in Rabat where she lost to compatriot Alison Van Uytvanck, and the third round in Indian Wells where she defeated wildcard Taylor Townsend and 28th seed Donna Vekić, before losing to Karolína Plíšková.

In 2020, she finally won a match in the main draw of a major at the US Open in New York.

At the French Open, she qualified to make her debut at this major thus finally completing the set of main-draw appearances at all four major tournaments.

She reached the top 100 on 31 October 2022, at world No. 94.

At the Auckland Open, she reached her first WTA Tour semifinal as a qualifier, defeating eighth seed Rebecca Marino and third seed Leylah Fernandez. She reached her second quarterfinal of the season at the Monterrey Open with a win over qualifiers Despina Papamichail and Kamilla Rakhimova. She lost to eventual champion Donna Vekić in three sets and reached a new career-high of world No. 84, on 6 March 2023.

Having withdrawn during qualifying at the 2024 Australian Open due to a knee injury which subsequently required surgery, Bonaventure won just one of eight matches following her return to competitive action and announced her retirement from professional tennis in March 2025.