In the equestrian discipline of reining, the "spin" or "turnaround" is a fundamental and highly technical maneuver designed to showcase the horse's supreme athleticism, agility, and willingness to follow subtle cues. The rider asks the horse to perform a series of 360-degree rotations in place, pivoting on a stationary hind leg (the "inside" leg) while the front legs "walk" or cross over one another at high speed. This movement is not just for flair; it demonstrates the horse's "broke-ness," or the degree to which it is responsive to the rider's seat, legs, and light rein pressure. Judges in reining competitions look for a flat, fast rotation where the horse remains calm and balanced, starting and stopping exactly when asked. Spinning is also a practical skill historically used by working cow horses to quickly change direction when tracking cattle. In modern competition, a rider must typically perform exactly four or four-and-a-quarter spins in each direction. If the horse over-spins or under-spins by even a quarter turn, the rider faces point deductions. The goal is to achieve a blur of motion that looks effortless and controlled, highlighting the unique bond and communication between the horse and the rider.