Competing Horse or Rider is a term used to describe an individual who participates in equestrian events. An Eventer is a type of competitor who participates in the sport of eventing, which combines elements of dressage, show jumping, and cross-country riding. Eventers must demonstrate their horse's ability to perform a variety of tasks, including jumping obstacles, navigating difficult terrain, and performing complex dressage movements. Eventers must also demonstrate their own skill and knowledge of the sport.