 Following the time trial , there were three mountainous stages , although none of them had a summit finish . All three were won by riders from breakaways . Nicolas Roche ( Sky ) won Stage 18 , beating Haimar Zubeldia ( Trek Factory Racing ) in a two @-@ man sprint . After his team had put pressure on the peloton through the whole stage , Aru attacked Dumoulin six times on the final climb , and Valverde put in three more attacks . Dumoulin , however , did not lose any time and retained his three @-@ second lead . Stage 19 ended with a short , cobbled climb into Ávila . It was won by Alexis Gougeard ( AG2R La Mondiale ) , who had escaped from the breakaway group on the previous climb . The day 's racing also produced another crash : this time Aru fell to the ground . Although he had to make several trips to the medical car , he did not seem seriously injured . At the end of the stage , Dumoulin used his team to put him in a strong position for the cobbled climb and he increased his lead over Aru to six seconds . Stage 20 was the final day of mountainous terrain , including four difficult climbs . It was won by Rubén Plaza ( Lampre @-@ Merida ) after a 117 @-@ kilometre ( 73 mi ) solo breakaway that lasted over three hours . Aru 's Astana team rode hard in the second half of the stage and , with a strong team effort , they were eventually able to drop Dumoulin on the penultimate climb of the day ; he dropped further back on the final climb and lost nearly four minutes , dropping to sixth place overall . Quintana and Majka gained nearly a minute on the other general classification rivals . This meant that Aru took the race lead , with Rodríguez second and Majka third . 
