Beast Of The Beacons

APR
17
2027
Marked trail event in the Brecon Beacons offering 10, 20 and 40 mile routes with checkpoint support, mandatory kit checks and handcrafted trophies.
Sat 17 Apr 2027
40 miles 20 miles 10 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Beast of the Beacons

The Beast of the Beacons is a trail running event held from a base at Henderson Hall in Talybont on Usk within the Brecon Beacons National Park. The event offers marked routes with marshal support across a variety of terrain including forests, mountains, rivers and reservoirs.

Distances

  • 10 Miles / 16 km
  • 20 Miles / 32.5 km
  • 40 Miles / 65 km

The 40 mile course follows the 20 mile route a second time in reverse. The route includes climbs, rocky sections, soft forest trails, mud and river crossings; snow can sometimes be encountered. Checkpoints are described as well stocked and provide options to meet dietary requirements, including vegan choices, with items such as fruit, nuts, biscuits, electrolytes, drinks and homemade cake.

Cut off times are 8 hours for the 10 mile and 20 mile routes and 16 hours for the 40 mile route. The event is canicross friendly; dogs must be at least 12 months old, kept on a lead and are the owner’s responsibility. Trophies are not allocated to canicross participants.

A full mandatory kit list is enforced and checked at registration; no participant will be allowed to start without the required kit. GPX files are available for download and the 40 mile uses the reversed 20 mile GPX. Entry fees are listed per distance and prizes include a bespoke medal and handcrafted Welsh slate trophies for top finishers. Visit the organization's website for the most recent information.

40 mi
40 Mile Ultra Challenge
20 mi
20 Mile Trail Running Challenge
10 mi
10 Mile Trail Running Challenge
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.