Team Sky 's Richie Porte and Geraint Thomas remain in contention for the week-long Paris-Nice title after Friday 's fifth stage was won by Davide Cimolai ( Lampre ) in a bunch sprint . Poland 's Michal Kwiatkoswki ( Etixx-QuickStep ) retained the race leader 's yellow jersey after the 192.5-kilometre stage from St Etienne to Rasteau . But the world champion 's advantage is sure to come under attack this weekend from Porte and Thomas , who are one and three seconds behind , respectively . Italian rider Davide Cimolai celebrates his victory in the fifth stage of Paris-Nice on Friday . Riders keep pace in the peloton during stage five of the 2015 Paris-Nice Saint-Etienne to Rasteau . Riche Porte celebrates winning ahead of Team Sky team-mate Geriant Thomas during stage four . Welshman Thomas is likely to support the Australian 's bid for overall victory . Kwiatkoswki may need to gain some time in Saturday 's lumpy sixth stage from Vence to Nice as Porte is expected to be strong in Sunday 's concluding 9.5km time-trial up Col d'Eze . Saturday 's stage , which covers 184.5km from Vence to Nice is the big mountain challenge of the week-long race and features three Category 1 climbs . It gives climbing specialist Porte the ideal opportunity to take the overall lead while Thomas , who is in third , three seconds behind the Pole will also benefit . Porte celebrates on the podium after winning the fourth stage , and he is now eyeing another overall win .
Davide Cimolai has won the sixth stage of the week-long Paris-Nice . His victory means Richie Porte and Geraint Thomas remain in the title hunt . Poland 's Michal Kwiatkoswki retained the race leader 's yellow jersey .