Sport horse
A sport horse or sporthorse is a type of horse, rather than any particular breed. The term is usually applied to horses bred for the traditional Olympic equestrian sporting events of dressage, eventing, show jumping, and combined driving, but the precise definition varies. In the United States, horses used in hunt seat and show hunter competition are often classed as sport horses, whereas the British show hunter is classified as a "show horse."
Horses used for western riding disciplines, Saddle seat, or any form of horse racing are generally not described as sport horses.
Breeding
Sport horses are bred for specific qualities in their conformation, movement, and temperament. The purpose and breeding of sport horses across the world varies little, but the exact definition of a "sport horse" differs slightly from country to country. In the United Kingdom, the term "sport horse" refers to any horse suitable for dressage, eventing or show jumping. In the USA, the definition is broader, sometimes encompassing horses used in any of the hunt seat disciplines.