How do I train a rollback, and what common mistakes should I avoid?

The rollback is one of the most athletic and visually impressive maneuvers in reining — a 180-degree turn over the hocks immediately following a stop, executed with the inside hind leg planted as a pivot while the horse pushes off and lopes away on the new lead in one fluid motion. Judges score the rollback on the smoothness of the turn, the horse's ability to stay on the hocks throughout, and the immediate departure on the correct lead without hesitation or correction. Building a correct rollback requires the horse to have confirmed stops, reliable lead departures, and the strength to turn over its hindquarters without losing its balance. The building blocks for the rollback are established long before the full movement is attempted. The horse must stop correctly — driving through with the hind end rather than slamming to a halt with the front — and it must be capable of turning on the haunches at a walk and trot without drifting, losing the pivot foot, or needing excessive rein pressure to complete the turn. If either of those pieces is missing, working on the rollback as a complete maneuver simply compounds the gaps rather than filling them. Introduce the rollback at a slow lope initially. Stop the horse, allow one breath of stillness, then open the inside rein toward the new direction and support with the outside leg to push the horse through the turn. The departure on the new lead should follow immediately from the momentum of the turn rather than requiring a separate aid. Many trainers use the fence to help early in the training process — stopping with the fence in front of the horse prevents forward drift and encourages the horse to turn back rather than moving forward through the stop. The most common mistakes are hurrying the turn before the horse has truly stopped, allowing the pivot foot to walk rather than plant, and failing to get a clean lead departure out of the turn. Each of these errors has its own correction, but they all trace back to the same root — attempting the rollback before the foundational pieces are confirmed.