Yr Wyddfa Ultra 100
Betws-y-Coed, United Kingdom • 6 Sep 2025
The Yr Wyddfa Ultra 100 is a challenging 102-mile ultramarathon held in Snowdonia National Park, Wales, featuring 5,788 meters of ascent across stunning mountainous terrain. The race starts and finishes in Betws-y-Coed and includes 10 well-supported checkpoints offering refreshments and medical aid. It is a self-navigation event requiring participants to carry mandatory safety and navigation kit.
With a 40-hour cut-off time and a limit of 250 places, the race demands prior ultramarathon and mountain experience. Finishers earn a distinctive buckle, with gold awarded to the top 100. Live GPS tracking enhances spectator engagement, and the event emphasizes safety and environmental care. Visit the organization's website for the most recent information.