On 13 December 2021, she reached her highest WTA singles ranking of No. 189. On 2 July 2018, she peaked at No. 389 in the WTA doubles rankings. Andrianjafitrimo has won four singles and two doubles titles on the ITF Circuit. Her father, Teddy Andrianjafitrimo, was born in Madagascar. Teddy was an excellent amateur tennis player. A tennis champion of Madagascar and Africa, he did not become a professional tennis player because of lacking financial support to do so. Teddy immigrated to France and worked as a club coach; he is currently Tessah’s coach. Tessah was born in Montpellier and has been living in Nogaro since 2010. She has two younger siblings.