 There was also a mountains classification , for which points were awarded for reaching the top of a climb before other riders . Each climb was categorised as either first , second , or third @-@ category , with more points available for the more difficult , higher @-@ categorised climbs . For first @-@ category climbs , the top seven riders earned points ; on second @-@ category climbs , five riders won points ; on third @-@ category climbs , only the top three riders earned points . The leadership of the mountains classification was marked by a white jersey with red polka @-@ dots . 
