In early 1994, less than two years after beginning gymnastics, she was accepted to train with the French national team in Marseille; by 1995 she was competing at the elite level.

With her innovative and expressive floor exercise routine, choreographed by coach Adriana Pop, she won a bronze medal in event finals, the first ever for a French gymnast at Worlds.

In 2000, Furnon seemed to be on the brink of success again, winning the floor exercise title at the 2000 European Championships over a tough field that included Elena Produnova, Simona Amânar and reigning world FX champion Andreea Răducan.

However, at the 2000 Olympics a few months later, Furnon was dealing with injury issues, and was only able to compete on the uneven bars during the team portions of the meet.

[1] Furnon has performed with her husband, Nicolas Besnard, in act named Duo MainTenanT since they both retired from Cirque du Soleil.