Show jumping, also known as "stadium jumping" or "jumpers," is a member of a family of English riding equestrian events that also includes dressage, eventing, hunters and equitation. Jumping classes are commonly seen at horse shows throughout the world, including the Olympics. Sometimes shows are limited exclusively to jumpers, sometimes jumper classes are offered in conjunction with other English-style events, and sometimes show jumping is but one division of very large, all-breed competitions that include a very wide variety of disciplines.

People unfamiliar with horse shows may be confused by the difference between working hunter classes and jumper classes. Hunters are judged subjectively on the degree to which they meet an ideal standard of manners, style, and way of going. Conversely, jumper classes are scored objectively based entirely on a numerical score determined only by whether the horse attempts the obstacle, clears it, and finishes the course in the allotted time. Jumper courses are often colorful and at times quite creatively designed. Jumper courses tend to be much more complex and technical than hunter courses, because riders and horses are not being judged on style.

Jumper classes are held over a course of show jumping obstacles, including verticals, spreads, double and triple combinations, usually with many turns and changes of direction. The purpose is to jump cleanly over a set course within an allotted time. Time faults are assessed for exceeding the time allowance. Jumping faults are incurred for knockdowns and blatant disobedience, such as refusals (when the horse stops before a fence or "runs out").Horses are allowed a limited number of refusals before being disqualified. A refusal can also lead to a rider going over the time allowed on course. Placings are based on the lowest number of points or "faults" accumulated. A horse and rider who have not accumulated any jumping faults or penalty points are said to have scored a "clear round." Tied entries usually have a jump off over a raised and shortened course, and the course is timed; if entries are tied for faults accumulated in the jump-off, the fastest time wins.