Casual observers often confuse the two different types of events, enduros and rallies, but within the international off-road motorcycle community, the term enduro refers specifically to time keeping events which require competitors to maintain a prescribed mile per hour average over varying terrain.
Certainly part of the confusion stems from the fact that rallies and enduros share two pronounced qualities; they are usually lengthy compared to most forms of motorsport racing and they cover varying off-road terrain, usually without repeating any section of the terrain in the course of an event.