Our categorization is based on the official UCI but with some modification. When a climb is categorized, for Tour de France for example, there is a subjective component to the categorization. If a climb is at the end of the stage it could get a tougher category than if it was earlier in the stage. Our categorization is completely objective, so if a climb is cat 1 it will always be a cat 1 climb. To decide the category of a climb we multiply the length of the climb (in meters) with the grade of the climb in percent. If that number is greater than 8000 then it is a categorized climb. The minimum percent grade must be 3% or higher. So, for a 4% avg grade climb, it has to be 2km at least to be categorized. Cat 3 > 16000, 2 > 32000, 1 > 64000, HC > 80000.
Evet ben karıştırmışım. :islik: pardon.