The Ultimate Endurance Race
Events / Trail Running
Yr Wyddfa, or Snowdon in English, is the highest mountain in England and Wales and peaks at an impressive 1,085 m (3,560 feet).
Starting and finishing at the foot of this iconic mountain, you will be challenged as an individual, or part of a team, to ascend and descend Snowdon as many times as possible in 24 hours.
Being UTMB Indexed, this is also a great qualifying or preparation race for UTMB Mont Blanc. The individual challenges mean that there is a 50k, 100k and 100m mile UTMB indexed challenge.
Categories for solo runners, pair relay and team (up to 5) relay. Pair and team entries receive one timing chip, meaning only one person will be running at one time.
Race and Route Information
08 Jul - 09 Jul 2023
Run: As far as you can!
Lively Event village
Toilets, food, shopping, music and commentary during daylight hours.
Silent respite area, tent pitches and chill out zone
On Course Support
Friendly marshals, signage and Mountain Leader support.
Unique Finisher Mementos!
Beautifully designed to reflect our event locations and local history.
Unbeatable views across Snowdonia
Chip timing, live tracker and online results
Travel & Accommodation
Info for locals
Other Trail Runnings
We are proud that all our events are bilingual. Signs, registration and commentary are available in English and Welsh.