Joseph has made the decision to stay mostly based away from mainland France in favour of remaining in her homeland.

[2] She won the bronze medal in athletics 200m during the European Youth Olympic Festival in 2017, held in Győr, Hungary.

[4] On 16 June 2021 in Cergy-Pontoise, Joseph ran 22:77 for the 200m and became the first Frenchwoman to make the qualifying standard for the 200m at the delayed 2020 Olympic Games.

Remarkably, due to the COVID-19 pandemic, the race had come for Joseph after an enforced 10 day quarantine following her arrival in France which had affected her ability to train.

[8] She won a sprint double at the French Athletics Championships in June 2024 in Angers, including a personal best 11.01 seconds for the 100 metres.