

About the event
Beginning in the village of Llangynidr, the Ultra Bach route ascends Tor Y Foel and climbs past waterfalls to the summit of Craig Y Fan Ddu. Runners then tackle the main Bannau peaks, including Fan Y Big, Cribyn, and Pen Y Fan, before descending through 'waterfall country' to the finish in Pontneddfechan. With approximately 2,400 meters of elevation gain, the course combines strenuous ascents with breathtaking scenery. Organized by Run Walk Crawl, this race on October 31, 2025, is perfect for runners seeking a mid-distance ultra challenge amidst Wales' natural beauty.
Date:
Fri
Oct 31
2025
Location:
Distance:
Elevation profile:
Hilly
Website:
LinkElevation gain:
Number of participants:
Find the best training plan for your goals and the distance you’re planning to run:
Stories from Runnas
Take your running to the next level
The Ultra Bach is a 31-mile trail race starting in Llangynidr and finishing in Pontneddfechan, traversing the central Bannau Brycheiniog range. With around 2,400 meters of elevation gain, this October 31, 2025, event offers a challenging yet accessible ultra-distance experience.
If you are an official race organiser with any questions about this page, please get in touch: races@runna.com
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