What is the hunter jumper discipline?

Hunter jumper is an English equestrian discipline encompassing three related but distinct competitive formats — hunters, jumpers, and hunt seat equitation — all ridden in a forward, two-point jumping position with a hunt seat saddle and English tack. The discipline traces its origins to the fox hunting tradition of the British Isles and the American East Coast, where horses and riders needed to navigate varied terrain and natural obstacles smoothly and safely in the field. In its contemporary competitive form, hunter jumper is one of the most popular equestrian disciplines in the United States, with a competition structure ranging from local schooling shows through regional circuits to the national Grand Prix and indoor championship events that represent the discipline's highest competitive level. The three formats that make up the hunter jumper world differ significantly in what they evaluate: hunters are judged subjectively on the horse's movement, manners, and style over fences; jumpers are judged objectively on speed and whether the horse clears every fence; and equitation classes judge the rider's position, effectiveness, and horsemanship rather than the horse's performance. These three formats can involve entirely different horses and entirely different training priorities, though many horses and riders compete across multiple formats within the same horse show. The hunter jumper world in the United States is governed primarily by the United States Hunter Jumper Association and the United States Equestrian Federation, whose rules and competitive structure define the standards and levels for amateur and professional competition across the country.