Beast of the Beacons

APR
17
2027
Trail running in the Brecon Beacons with marked 10, 20 and 40 mile routes, staffed checkpoints, GPX files and mandatory kit checks.
Sat 17 Apr 2027
40 miles 20 miles 10 miles

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

About the race

The Beast of the Beacons is a trail running event on 17 April 2027 in the Brecon Beacons National Park, starting and finishing at Henderson Hall, Talybont on Usk. The event offers three marked distances:

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

Routes run across forest tracks, mountain trails, rivers and reservoir edges with varied surfaces including rocky paths, mud and steep climbs. Elevation gain is listed in the event information as approximately 2026 ft for the 10 mile route, 3884 ft for the 20 mile route and 7768 ft for the 40 mile route. The 40 mile course follows a reversed second lap of the 20 mile route.

Checkpoints are staffed and described as well stocked, offering nuts, fruit, biscuits, crisps, electrolytes, drinks and options for different diets including vegan. The event is marked and supported by marshals and a full medical team. Cut off times are set at eight hours for the 10 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, fit to run, kept on a lead and remain the owner’s responsibility; canicross entries are not eligible for the main trophies. GPX files are provided for the routes. A mandatory kit list is enforced and includes waterproofs, a race pack, carrying capacity for at least 1 litre of fluid, emergency food, map or downloaded GPX, charged phone, first aid items, foil blanket, reusable cup, head torch and whistle. 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.