[citation needed] In 2016, she commenced the year at the Perth $25k event, where from qualifying she won eight matches en route to her first title.

[3] Fourlis reached the girls' doubles semifinals of the 2016 Australian Open, partnering with Maddison Inglis.

[citation needed] Fourlis was given a wildcard into the 2017 Hobart International[4] where she lost to Kirsten Flipkens in the opening round.

[10] Fourlis was given a wildcard into the 2018 Hobart International where she defeated Nina Stojanović,[11] before losing to Heather Watson in the second round.

[16][17] Given a wildcard partnering Jason Kubler, Fourlis reached the final in the mixed doubles at the 2022 Australian Open which they lost to fifth seeds Kristina Mladenovic and Ivan Dodig.

[18][19] She qualified for 2022 Wimbledon Championships, making her main-draw debut at this major,[20] but lost in the first round to Kirsten Flipkens.

[26] Partnering Petra Hule, Fourlis won her first WTA 125 doubles title at the Canberra Tennis International, defeating Darja Semeņistaja and Nina Stojanović in the final.