San Silvestre Universitaria UPSA takes place in late November in Salamanca, centered on a short, popular run and a non-competitive walk. The primary running distance is approximately 7 km, with the walk covering 4.2 km, making the event suitable for those seeking a brief city race over a lengthy endurance challenge. The schedule also features children's races for participants under 16, preceding the walk and the main adult race held in the late afternoon.
The event is closely linked to the Universidad Pontificia de Salamanca. Registration is managed via university channels, and results distinguish between students and university personnel versus the general participants, based on selected categories. Participants receive bibs, timing chips, T-shirts, and runner bags at El Corte Ingles in Salamanca. This arrangement fosters a local university-community atmosphere rather than that of a major destination event. The practical organization is straightforward: modest entry fees, limited registration numbers, a walking alternative, children's categories, and a short main course within Salamanca.