\u00a1Who notendurande, not useful! Says a old principle rar\u00e1muri, ethnic group inhabitant in the Sierra Tarahumara, inside the Sierra Mother Western of the Chihuahua State in Mexico. With a natura harsh for the survival, is accept the idea what \u201cfor live you have to be resistant\u201d and so support the shortage of water and food because of the drought, the intense cold nocturne of winter or the long cross-montains. From hundred of years, mens and womens rar\u00e1muri, like the custom says they compete running during the today and the night, for ways abrupts, distances of more of two hundred. In this work is described different aspect of this singular race, for to analyse the principals funtions laik cultural event.<\/p>\n\n