Last year the USA Pro Challenge visited Vail, and the time trial was decided by four seconds. In three visits to the Vail individual time trial course, this was the largest margin of victory. Competition will be equally fierce this time around, but the names may change a bit. The course’s roots are in Colorado racing lore and trace back to the Coors Classic. Starting in Vail and climbing most of the way up Vail Pass the route is no easy proposition, even for the best riders on earth. The gentle grades of the first half of the course give way to a steady climb for the last three miles. It takes more than legs on this strategic course though; go too hard early and the climb may kill your chances, but conserve too much for the climb and the leaderboard may be out of reach.