Tom Dumoulin: 'I'm afraid of that final week; we haven't even done half the climbs yet'

Despite two stage wins so far including stage 14's summit finish to Oropa, race leader Tom Dumoulin says that he is still afraid of the mountainous final week of the Giro d'Italia.

With time bonuses, Dumoulin put 24 seconds into pre-race favourite Nairo Quintana (Movistar) on the summit finish. Quintana had a gap early on the climb, but the Dutchman from Maastricht returned and dropped him for the stage win and bonus seconds.

>>> Tom Dumoulin distances Nairo Quintana on summit finish to extend Giro d'Italia lead

"It's very much still open," Dumoulin said, after riding though the press room on his black bike, pink tape wrapped around the handlebars to match his pink long-sleeve jersey.

"We have the last week, and we haven't even had half of the climbs yet. It will be very, very hard, and so much can happen. I am still a little bit afraid of the last week, so we will see."

>>> Five talking points from stage 14 of the Giro d'Italia

The 26-year-old Sunweb rider has been in this position before in a Grand Tour, being to win the 2015 Vuelta a España before cracking on the penultimate stage. This year, however, he prepared for the first time to win a Grand Tour.

Watch: Giro d'Italia stage 14 highlights

Quintana struck with four kilometres left no the climb to Oropa and gained time with Domenico Pozzovivo (Ag2r La Mondiale) and Ilnur Zakarin (Katusha-Alpecin). Dumoulin, though, kept his rival insight, and passed him in the final two kilometres. Zakarin went to the front, while Quintana faded.

Dumoulin took over and charged for the line with the roar of fans covering the hillsides. Victory brought a 10-second bonus to add to the 14-second gap on Quintana.

He noveleads the race by 2-47 minutes over Quintana, 3-25 over Thibaut Pinot (FDJ) and 3-40 over Vincenzo Nibali (Bahrain-Merida).

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"Now I have even more of an advantage," Dumoulin said. "It's a really nice advantage. We cannot sit back and relax, we have to stay focused. And then we will see what happens in the last week."

The Giro continues tomorrow with an Il Lombardia-esque stage to Bergamo. After a rest day the riders will climb the Stelvio twice, before four more stages in the mountains.. Dumoulin's pink light at the end of the tunnel is a 29.3-kilometre time trial from Monza to Milan on the last day.

"It's the number of high altitude climbs that worries me," Dumoulin continued. "I'm not afraid of my competition, I 'm not afraid of anything really, I just need to stay focused and it will be OK."