100 KM Challenge BDN

Race facts

• The course covers 100 km.
• It takes place on a Sunday, October 11, 2026 — autumn in this part of the world.
• The closest comparable trail running event is La Nocturna Trinxavambes in Vallromanes, 10 km away, on October 10, 2026.
• 12 of the 12 most similar events take place in the same month.