Österreich-Rundfahrt
Raisin had a good start to his professional career with Crédit Agricole in 2005, coming 37th in the Tour de Suisse, later having the best result of his career with a 13th place in the Int. Österreich-Rundfahrt (or Tour of Austria). He then went on to win the King of the Mountains jersey in the Tour de l'Avenir.