Skier Rider Ability Level
From FIS Freestyle wiki
Skier Rider Ability Level The following gradients were used to determine the skier ability level of the mountain terrain: | Skier Ability Slope Gradient Beginner 8 to 12% Novice to 25% (short pitches to 30%) Low Intermediate to 30% (short pitches to 35%) Intermediate to 40% (short pitches to 45%) Advanced Intermediate to 50% (short pitches to 55%) Expert over 50% (maximum of 80%)