Born in Toulouse, Haute-Garonne, Barthet made her World Cup debut at age 17 in October 2005. Her best Olympic result is fourteenth in the giant slalom in 2014.[4] She has eleven top tens on the World Cup (six in slalom, four in combined, and one in giant slalom), with her best result being a third place podium finish in combined at Soldeuin 2016.[2]
In the downhill at Aspen in December 2007, Barthet dislocated her knee in a heavy fall,[5] and was out of competition for eleven months. At the2018 Winter Olympics, she was injured in a fall twenty minutes prior to the combined event, and fractured her fibula, which kept her out of competition for eight months. Barthet was selected for the 2019 World Championships, despite not obtaining a result from her two World Cup starts in late January; she secured a start in the combined competition after a victory in a combined race on the Europa Cup circuit in early December. In an interview at the World Championships, she said that they would be her last, although she had not decided the exact date of her retirement.[6]
^"Ladies' Slalom Results". Vancouver2010.com. Vancouver Organizing Committee for the 2010 Olympic and Paralympic Winter Games. Archived from the original on 2010-04-08. Retrieved 8 October 2011.