What is "calf roping"

n. capturing a calf with a lasso and binding its feet

Calf roping, also known as tie-down roping, is a rodeo event that features a calf and a rider mounted on a horse. The goal of this timed event is for the rider to catch the calf by throwing a loop of rope from a lariat around its neck, dismount from the horse, run to the calf, and restrain it by tying three legs together, in as short a time as possible.