Semi-Marathon Bajo Pas Ayto de Piélagos

Race facts

• The course covers 21.1 km.
• It takes place on a Saturday, September 12, 2026 — autumn in this part of the world.
• The closest comparable running event is 24h Santander in Santander, 12 km away, on September 5, 2026.
• 12 of the 12 most similar events take place in the same month.