 The next stage was a moderately difficult stage that ended in a bunch sprint . Peter Sagan won his first Grand Tour stage in over two years ahead of Nacer Bouhanni ( Cofidis ) and John Degenkolb ( Giant @-@ Alpecin ) . The fourth stage again included an uphill finish . This stage was also decided in a sprint finish , this time won by Alejandro Valverde . Sagan , who came second , took over the lead of the points classification . A third consecutive bunch sprint came on the fifth stage , which ended on a slight incline . The relatively straightforward stage was won by Caleb Ewan ( Orica – GreenEDGE ) , who was riding his first Grand Tour , ahead of Degenkolb and Sagan . There were splits in the peloton at the finish ; Chaves lost six seconds to Tom Dumoulin ( Giant – Alpecin ) , who therefore took over the red jersey of the race leader by one second . This lead did not last long . The sixth stage finished on another moderate climb . Chaves again attacked early in the climb and took his second stage victory , with Dan Martin ( Cannondale – Garmin ) second and Dumoulin third . Chaves therefore took back the red jersey . 
