El Privilegio 100 Millas is a small ultra-distance race weekend centered in La Puebla de Montalbán, Toledo, Spain, held over a Friday-to-Sunday in November. The main event is a 100-mile ultra (166 kilometers), with additional races of 50 miles, 6 Leguas, and shorter options, covering distances from approximately 30 to 174 kilometers.
Races commence at the Ermita de Santa Maria de Melque near San Martín de Montalbán, providing a rural Castilian setting instead of a large urban race atmosphere. The 50-mile race is 86 kilometers, the 6 Leguas race is 29 kilometers, and some categories include Nordic walking. This setup allows for a mix of long-distance runners and walkers across various formats. Current participant numbers are modest, with only a few dozen registered overall, suggesting a focused local endurance event rather than a large-scale festival.