Eventing

e·vent·ing
noun

equestrian riding competition: an equestrian competition that includes dressage, cross-country riding, and stadium jumping, usually over three days

Encarta® World English Dictionary [North American Edition] ©2003 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.

The USA Equestrian Rule Book defines Eventing:

An Eventing Competition includes one or more tests from the following branches of equitation:

• dressage
• cross-country
• jumping

The Federation and the USEA recognize three types of Eventing Competitions:

• Tests (Individual or Combined)
• Horse Trials
• Events (Two–Day or Three–Day)