Woods wins stage 4 under miserable conditions to take over from Marc Soler as overall race leader.This Thyon stage was delayed by 2 hours to avoid the snow which had been predicted beforehand.
Neutralization occured mid race when thick fog started to emerge. A neutralized race is when riders deliberately slow down with no one actually racing. Geraint Thomas looked set for the yellow jersey , being in the two rider sprint in the final climb. But an unfortunate crash left him third in the stage behind Woods and O’Connor. Crash occured 50 meters from finish.
Over night leader Soler finished 9th.