Definition of trail-running
Trail-running is a pedestrian race open to all, in a natural environment (mountain, desert, forest, plain…) with minimal possible paved or asphalt road (which should not exceed 20% of the total course).
The terrain can vary (dirt road, forest trail, single track…) and the route must be properly marked (1).
The race is ideally – but not necessarily – in self-sufficiency or semi self-sufficiency (2) and is held in the respect for sporting ethics, loyalty, solidarity and the environment.
Classification of Trail running races
- Trail: Under 42 km
- Trail Ultra Medium (M): 42 km to 69 km
- Trail Ultra Long (L): 70 km to 99 km
- Trail Ultra XLong (XL): 100 km and more
(1) "Properly marked" means that the runners will receive enough information to complete the race without getting lost.
That includes physical markings (flags, tapes, signs…) or GR permanent markings or GPS tracks or map indication.
(2) "Self-sufficiency or semi self-sufficiency" means that the runner has to be autonomous between aid stations, regarding clothing, communications, food and drink.