Adventure racing (also called expedition racing) is a combination of two or more endurance disciplines, including orienteering (if an orienteering map is used) and/or navigation (when non-orienteering maps are used), cross-country running, mountain biking, paddling and climbing and related rope skills. An expedition event can span ten days or more while sprints can be completed in a matter of hours. There is typically no suspension of the clock during races, irrespective of length; elapsed competition time runs concurrently with real time, and competitors must choose if or when to rest.
Adventure racing historically required teams to be of a specified size and to include both men and women, but many races no longer restrict team size and include single-sex divisions. Some also include age-based categories.