double unders

For more intensity, increase the time, and once you’ve mastered standard skipping, experiment with double unders (jumping high enough to spin the rope under your feet twice), alternating feet for each jump, and skipping one-legged.

They will be judged on the precision and style with which they perform synchronized single-rope free style routines and on their command of "double unders" and "triple unders" where each jump is accompanied by two and three spins of the rope.