Cross Fiestas Barrio del Pilar is a cross-country race held during the Barrio del Pilar festivals in Parque Carmen Tagle, also called Parque Norte, on Avenida Monforte de Lemos. The first race starts at 9:00 AM, and the event is split into several races rather than one single mass start.
The program uses separate categories for minors, senior women, senior men, veteran women, and veteran men, with veterans starting at age 35. Runners need to register in advance with the correct category form; there is no race-day registration. The organizers publish the schedules, distances, and race circuits separately. The event has more than thirty editions behind it.