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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 map and compass skills, with live GPS tracking for safety.

The event accommodates 250 runners with a 40-hour cut-off time. Participants must carry mandatory safety gear due to variable mountain weather. Finishers earn distinctive buckles based on placement, and the race is part of the 100 Mile Grand Slam series.

Entry is by application only, emphasizing experience and preparedness. Visit the organization's website for the most recent information.

United Kingdom Wales Betws-y-Coed

Race information

Website
100 mi
5788 m+
Yr Wyddfa Ultra 100 Mile
Visit the organization's website for the most recent information.
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