Jérôme Pineau concentrated mainly on finishing first in the climbs, which won him the polka dot jersey. Towards the end, most riders were expecting Jens Voigt to try to get away on his own, but he never did. Instead, Christophe Laurent twice got away, but was caught by the chasing four. Then, José Luis Arrieta got away from the others, but during the last climb of the day, the Cauberg, the peloton passed by him. The most important event of this stage was the loss of Alejandro Valverde, the leader in the ProTour, who broke his collarbone. Erik Dekker and Fred Rodriguez also crashed, and both suffered serious injuries.