38, achieved in February 2019, and a best singles ranking of 570, reached in September 2017.

Christian was Emma Stone's body double as Billie Jean King in the 2017 film Battle of the Sexes,[1] and she also is credited as portraying tennis player Kerry Melville in the film.

She also portrayed tennis player Shaun Stafford in the 2021 film King Richard.

[citation needed] Partnering with Sabrina Santamaria, Santamaria won her first WTA 125 doubles title at the 2021 L'Open 35 de Saint-Malo, defeating Hayley Carter and Luisa Stefani in the final.

[2] Having entered the tournament as alternates when second seeds Hailey Baptiste and Caty McNally withdrew, she won her biggest title to date in the doubles at the WTA 250 2022 Abierto Zapopan, playing with Lidziya Marozava and overcoming Wang Xinyu and Zhu Lin in the final.