Egan Bernal and Sergio Henao came home third and fourth to solidify their general classification challenge following a thrilling finale to stage five at Colombia Oro y Paz.
Tao Geoghegan Hart
It's all still to play for tomorrow and it's incredibly tight.
He told TeamSky.com: "We've got a really strong team here. Every day we've got guys who can do all the jobs, which leaves it open to see who is feeling best each day and rotating. It's always tough to know how everyone is early-season.
"The stage went exactly how we wanted until the last couple of hundred metres. But that's out of the guy's hands really - a sprint is a sprint. It's all still to play for tomorrow and it's incredibly tight.
"Hopefully at the end of three pretty tough days it will split it up a bit more tomorrow and hopefully suit our guys. It's been an amazing experience so far and I think everyone's had a great time. It's been a wicked way to start the season and hopefully we can end it on a high."
Geoghegan Hart also heaped praise on the Colombian fans and the passion they have shown during the race.
He added: "It's unbelievable. I had high expectations but it's definitely blown those out of the water. Even before the climb today with about 25km to go we went through a village, and the amount of people on the side of the road was absolutely unbelievable. I've never seen anything like it! It's been an incredible experience.
"To see how rich the cycling culture is here, and to see how popular guys like Sergio, Egan, Rigo and Nairo are - it's incredible. It's been a great week for them, and for the fans with so much Colombian success."
1. Rigoberto Uran (EF Education First-Drapac) 3:42:33
2. Nairo Quintana (Movistar) s.t.
3. Egan Bernal (Team Sky)
4. Sergio Henao (Team Sky)
5. Ivan Sosa (Androni-Sidermec) +17”
1. Nairo Quintana (Movistar) 16:26:39