Eventing

Equestrian triathlon

Eventing (also known as three-day eventing or horse trials) is an equestrian event where the same horse and rider combination compete against other competitors across the three disciplines of dressage, cross-country, and show jumping. This event has its roots in a comprehensive cavalry test that required mastery of several types of riding. The competition may be run as a one-day event (ODE), where all three events are completed in one day (dressage, followed by show jumping and then the cross-country phase) or a three-day event (3DE), which is more commonly now run over four days, with dressage on the first two days, followed by cross-country the next day and then show jumping in reverse order on the final day.

From Wikipedia, under CC BY-SA. More on occurri.