The Hunter/Jumper Cross describes horses intentionally bred by crossing bloodlines to produce athletes capable of success in both hunter and jumper competition. This category encompasses various crosses rather than a single standardized breeding, united by the purpose of creating versatile sport horses combining desirable traits from multiple breed backgrounds.
Common crosses producing hunter/jumper horses include Thoroughbred crossed with various warmblood breeds, Irish Draught crosses, and draft-influenced crosses that add substance to lighter breeding. The Thoroughbred contributes athleticism, courage, and quality movement, while warmblood or draft influence adds bone, substance, calm temperament, and sometimes enhanced jumping technique. The specific cross affects the resulting horse's type and suitability for different competitive levels.
Terminology varies within the sport horse world. "Sport horse" broadly describes horses bred for Olympic-style disciplines. "Appendix" specifically refers to Quarter Horse/Thoroughbred crosses. Irish Sport Horses represent a formalized cross between Irish Draught and Thoroughbred with its own registry. Many hunter/jumper crosses carry designations like "Thoroughbred cross" or "warmblood cross" without more specific identification.
Registration options for hunter/jumper crosses include the various warmblood registries that maintain open studbooks accepting horses based on inspection rather than pedigree, sport horse registries like the American Warmblood Registry, and breed-specific registries for crosses meeting their requirements. Many successful hunter/jumper crosses compete unregistered, as USEF competition doesn't require breed registration for most divisions. The emphasis remains on the individual horse's quality and capability rather than pedigree documentation.

