the mountains classification and the individual time trial were both introduced in the 1933 giro d'italia. the mountains classification awarded points to the riders who crossed certain mountains on the race route first and the rider with the most points was the leader. in addition, the organizers also expanded the total number of stages to seventeen, it had been around twelve the few preceding years. alfredo binda gained the lead after the second stage, but lost it to jef demuysere after the fifth stage. after the eighth stage, binda regained the lead and had a six-minute advantage over demuysere. binda won the next three stages and went on to win the race as a whole. along with winning the general classification, binda won the inaugural mountains classification. by winning this edition of the giro, binda became the first five-time winner of the giro d'italia.