Yr Wyddfa Ultra 100

The Yr Wyddfa Ultra 100 is a challenging 102-mile ultramarathon set in the stunning Snowdonia National Park, featuring an elevation gain of 5788 meters. Scheduled for September 6, 2025, the event allows 250 participants to navigate through breathtaking mountain landscapes, with 10 checkpoints providing essential support along the route. Runners must possess prior ultramarathon experience and demonstrate navigation skills, as the race is classified as a navigation event.

Participants can earn gold, silver, or bronze buckles based on their finishing positions, and the event emphasizes safety with mandatory gear requirements and medical support at checkpoints. Visit the organization's website for the most recent information.