Donna Vekic made her big debut on the tennis court in 2010 on the ITF Circuit. The following year, she won two titles—one in singles, and one in doubles. She went on to collect three more singles titles on the ITF tour.
In 2013, she broke into the Top 100. She won her first WTA title at the 2014 Malaysian Open and second title at the 2017 Nottingham Open. She had the best Grand Slam record in 2019, reaching the quarterfinals at the US open and R16 at Roland Garros. That same year, she reached her career high ranking of No. 19.