How do you fix a horse that pulls to fences?

A horse that pulls toward fences — building pace on the approach, leaning on the rider's hands, or becoming progressively stronger and more difficult to rate as the fence approaches — is showing a pattern that reflects either excess enthusiasm and boldness, anxiety that manifests as forward rather than as stopping, or a learned pattern in which the horse has found that pulling produces the forward pace it needs to clear fences comfortably. Identifying which cause applies guides the correction: a bold, enthusiastic horse that pulls to every fence needs pace management training; an anxious horse that rushes from anxiety needs confidence work; and a horse that pulls because it has learned that pulling is necessary to get enough pace for the fence needs its canter quality and the rider's timing of aids adjusted to provide forward energy without requiring the horse to pull for it. For pace management of genuine pullers, systematic canter work that develops the horse's responsiveness to the half-halt is the foundation — a horse that responds genuinely to the half-halt by rebalancing rather than continuing to accelerate can be slowed in the approach without the fight that produces more pulling. Circles and serpentines before fences that maintain the horse's balance and prevent the building momentum of straight approaches reduce pulling in many horses because the circular movement naturally maintains pace without the straight-line acceleration the horse uses when pulling. The rider's position is also relevant: a rider who tips forward or releases rein contact on the approach to a fence often triggers or amplifies pulling because the forward lean and rein release signal the horse that the fence is approaching and invite the acceleration. Maintaining an upright, balanced position with consistent rein contact through the entire approach prevents the rider's body from inadvertently cueing the pulling behavior.