50 Miles – In the Kingdom of Stone 2026

The 50 Miles – In the Kingdom of Stone is a trail running event on September 19, 2026, in Alqueidão da Serra, Leiria. It features a 50-mile ultra trail, a 12 km sprint trail, and an 8 km walk. The event is open to federated and non-federated athletes, with a maximum of 200 participants per distance. Minimum age for the ultra trail is 18. For the 12 km sprint, the minimum age is 16 with authorization. The 8 km walk is open to all ages, but minors must be accompanied by an adult. The ultra trail course is challenging and includes time cutoffs. Rankings and prizes will be awarded to the top five male and female finishers. The event is supported by local entities and promotes environmental responsibility within a protected natural park.