Yr Wyddfa Ultra 100

Betws-y-Coed, United Kingdom • 6 Sep 2025

The Yr Wyddfa Ultra 100 is an exhilarating 102-mile ultramarathon set in the stunning Snowdonia National Park, featuring an elevation gain of 5788 meters. Scheduled for September 6, 2025, this challenging race 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 event is self-navigated. A cut-off time of 40 hours is enforced, and finishers can earn gold, silver, or bronze buckles based on their performance. The entry fee is £199, with options for installment payments available. Visit the organization's website for the most recent information.

Race information

100 mi
5788 m+
100 Miles
Visit the organization's website for the most recent information.
Trail runs nearby

The Sea 2 Summit - Offa's Dyke Half/Full/Ultra is a challenging running event that takes place along the scenic Offa's Dyke footpath, starting from Prestatyn seafront. Participants can choose from three distances: Half Marathon, Full Marathon, and an Ultra Marathon, which culminates at the summit of..

The Secret Santa Series, organized by Limitless Trails, is a festive running event set in the scenic Brecon Beacons National Park. Participants can choose from three distances: a 12K, a 10-mile, or a half marathon, each featuring challenging trails and beautiful landscapes. Runners are encouraged to..

The Guided Trail Run in Ceiriog Valley offers participants a relaxed 10km running experience starting from the village of Llanarmon Dyffryn Ceiriog. The route features approximately 300 meters of elevation, providing stunning views of the surrounding Ceiriog Valley. This event emphasizes a friendly ..

The Loggerheads Trail event, scheduled for March 2025, offers a popular trail running experience at Loggerheads Country Park. Participants can choose from three race options: a 5k Trail, a 5k Canicross Trail, and a new 10km route designed to challenge runners of all abilities. The event promotes a r..

The Beast of the Blacks is an ultra trail event featuring 10, 20, and 40-mile courses set in the stunning Black Mountains of Wales. Designed for both elite and beginner trail enthusiasts, this challenging event promises breathtaking views and diverse terrain, including forest trails and mountain sum..

The Llantysilio Mountain Race is a challenging running event set in the scenic Dee Valley, covering just over 6 miles with an ascent of 2100 feet. Participants will navigate a route along the Llantysilio Mountain ridge, culminating in a climb to Moel y Gamelin, the highest point at 1893 feet. The ra..