Castéra competed as a wildcard in the women's singles main draw at the 1994 French Open, where she lost in the first round to Sabine Appelmans.

Following her nomination, however, she became the subject of public criticism after claiming her "frustration" over teacher absences in her eldest son's state school had been behind the choice to move him to the private, catholic Collège Stanislas.

[5] In March 2024, Oudéa-Castéra revealed that since the year 2020, sex abuse complaints had been filed against 1,284 coaches, teachers and sports officials, with 186 facing criminal proceedings and 624 being sanctioned with temporary or permanent bans.

[6] On 13 July 2024, Oudéa-Castéra swam in the River Seine for a television crew from BFM TV to help assauge concerns about the cleanliness of the waterway and its proposed role in the upcoming 2024 Summer Olympics.

[7] In August 2024, after French Olympic sprinter Muhammad Abdallah Kounta was suspended by the President of the French Athletics Federation for publishing comments inciting hatred on social media, including inciting hatred against France, white people, Christians, and Jews, as well as support for the Islamist group Hamas, and including his desire to “kill Little White," Oudéa-Castéra said Kounta's posts were "as shocking as they are unacceptable.