Career
Décosse competed in the half-middleweight (57–63 kg) category until 2008. Thereafter, she switched to the middleweight (63–70 kg) category. She was ranked number one in the world in both categories.
Décosse retired from judo after losing her bronze medal match against South of Korea"s Kim Seong-Yeon at the 2013 World Judo Championships in Rio de Janeiro.