Courses
Famous courses, each measured along the mapped roads rather than a GPS trace, with the climbing read off the ground, and cut into its climbs, flats and descents. Then the predictor, ready for your weight, your watts and your position. No file to find: the course is already here.
Race courses and famous rides, such as the bike legs of Ironman races and gran fondos, each described once from its published course. Search by name, place, year or tag; more are added as they are drawn.
From a terrain model of the ground under the course, not from anybody's barometer. A barometer drifts with the weather over a few hours and cannot tell that from a hill, so the figure on a course page is the road's, and your head unit will often show you something different for the same ride.
Because the course is measured along the mapped roads (OpenStreetMap), not along a GPS trace. A trace is longer or shorter than the road by however far its receiver wandered, and your head unit measures its own. Where the mapped roads do not cover a course, its own trace is measured, and the page says so.
Because a time needs a rider, and a course page has none. It describes the road; the predictor, one click away, takes your weight, your watts and your position and answers with your time and the band around it.
No. A course page describes the road; it does not hand out the file, which usually belongs to the event or to the planner it came from. The event's own site is the place for the file.
Open the course and press "Predict your time on this course". The predictor opens with the course already loaded: set your weight, what you will hold on each kind of slope and how you will sit, and it answers with the time and the band around it, climb by climb.