It was certainly impressive, Quintana was the only rival who looked even close to holding Froome. But it was only the first mountain stage, the big ones are still to come and it is not unusual for one or more of the big names to have a bad day or two.
Contador looked a shadow of himself, at one time I thought that he was going to fall off the bike! He also has the problem that his team mates just do not seem to be anything like climbers, he was all alone when there should have been at least two with him.
Team Sky looked as though no-one is going to touch them, they could even finish up with a 1-2-3 in the King of the Mountains.
So far, so good, I hope that they can keep it up.