www.marlboroughhorsetrials.org Marlborough Horse Trials horses-and-riders compete in a triathalon of cross-country jumping, stadium jumping, and dressage.
The Marlborough Horse Trials are sanctioned by United States Eventing Association (USEA) and United States Equestrian Federation(USEF). Together, these organizations establish standards for competition in the US and oversee development of the sport to prepare riders to represent the U.S. at the Olympics and other world class events.
