2005 Sandie Clair first French Junior Champion was in the sprint. As a result, she took the podium at the Junior World Championships and European Championships ( junior ) in the sprint, keirin and 500m time trial.
2006 Sandie Clair in Ghent junior world champion in the time trial and was third in the sprint; 2007 European champion ( U23 ) turn in the time trial. In 2008 she won at the Track World Championships in Manchester in third place in the time trial, two-time European champion in the time trial and team sprint was ( with Virginie Cueff ) and French Champion in the time trial. In 2009 she was once again win two European titles, in the team sprint ( with Virginie Cueff ) and in the time trial. Multiple they also had good results in World Cup races.
2010 Clair in St. Petersburg European champion ( U23 ) in the Keirin, Sprint, she won bronze. In November 2010 she became European champion in the sprint and the team sprint, together with Clara Sanchez. In the UCI Track World Championships in Apeldoorn, the Netherlands in 2011 she won the 500m time trial second place.