Bai has a career-high singles ranking by the WTA of 83, achieved on 4 March 2024.

209, Bai made her WTA Tour debut at the 2023 Internationaux de Strasbourg, after entering the singles main draw as a lucky loser.

She held two match points against Varvara Gracheva in the first round but eventually lost.

[3] She reached the second round defeating Ysaline Bonaventure for her first major match win, before losing to eventual finalist, sixth seed Ons Jabeur, in 45 minutes.

She also received a wildcard for the WTA 500 Zhengzhou Open where she recorded a win over lucky loser Tamara Korpatsch.