The Carrera de la Constitución de Barajas is a free road race held annually in Madrid's Barajas district, near Spain's Constitution Day. The Barajas district council organizes it, attracting a wide local participation rather than solely competitive runners. Approximately 1,000 people of all ages registered for the reported edition.
The race starts and finishes on Calle de Alhaurín in the Timón neighborhood. Participants can choose from four distances: an 8 km main race, a 1.8 km short race, and children's races of 750 and 550 meters, based on age category. Bibs are available on race day. Entry is free, and the location is accessible via Metro Barajas and multiple EMT bus routes. Madrid's organizers note it as a traditional local race, with entries selling out, aligning with its community standing.