 There was also a mountains classification , the leadership of which was marked by a red and white polka @-@ dot jersey . In the mountains classification , points were won by reaching the top of a climb before other cyclists . Each climb was categorised as either hors , first , second , third , or fourth @-@ category , with more points available for the higher @-@ categorised climbs . Hors catégorie climbs awarded the most points , with 20 points on offer for the first rider across the summit ; the first ten riders were able to accrue points towards the mountains classification , compared with the first eight on first @-@ category passes and the first six riders on second @-@ category climbs . Fewer points were on offer for the smaller hills , marked as third @-@ category or fourth @-@ category . 
