 At the summit of the final climb , therefore , Gallopin had a lead over Porte and Thomas 's group , with Kwiatkowski struggling in another group behind . On the descent , however , Porte and Thomas both crashed in separate incidents ; they were recaptured by Kwiatkowski 's group . ( After the final stage , Porte attributed these crashes to over @-@ inflated tyres . ) Gallopin won the final intermediate sprint and the bonus seconds , ahead of the chasing group that was led by Rui Costa ( Lampre – Merida ) and Fuglsang . Gallopin , however , was able to extend his lead throughout the long descent . He won the stage solo , more than 30 seconds ahead of the first chasing group . Porte and Thomas were over a minute behind , with Kwiatkowski losing an additional two seconds on the finish line . 
