Beast Of The Beacons

APR
18
2026
The Beast of the Beacons offers trail runs of 10, 20, or 40 miles through the Brecon Beacons National Park. With marked courses, supported checkpoints, and a canicross option, it provides a demanding day on varied terrain. All finishers earn a unique medal.
Sat 18 Apr 2026
40 miles 20 miles 10 miles

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

Event Overview

The Beast of the Beacons is a trail running event held on 18th April 2026 in the Brecon Beacons National Park. The event features marked courses with marshal support and well-stocked checkpoints that cater to various dietary requirements. It is a canicross-friendly event.

Distances and Elevation

Participants can choose from three distances:

  • 10 miles (16 km) with 2026 ft of elevation.
  • 20 miles (32.5 km) with 4219 ft of elevation.
  • 40 miles (65 km) with 8438 ft of elevation. The 40-mile course consists of two laps, with the second lap run in reverse.

Location and Course

The event starts and finishes at Gilestone Farm in Talybont on Usk, Brecon. The route explores trails through forests and mountains, passing rivers and reservoirs. Organisers note that snow can sometimes be encountered.

Logistics

Cut-off times are 8 hours for the 10-mile and 20-mile routes, and 16 hours for the 40-mile route. Mandatory kit is required, including waterproof jacket and trousers, a race vest, a head torch, and a reusable cup. A full kit check is conducted at registration.

Additional Features

Dogs are allowed for canicross but must be at least 12 months old, kept on a lead, and participants are not eligible for overall trophies. Camping is available on-site, and facilities include toilets, a coffee van, a medical team, and a physio. Post-event refreshments are provided.

Participant Benefits

All finishers receive a bespoke medal. Prizes include handcrafted Welsh slate trophies for the top three overall male and female finishers, as well as categories for veterans over 50 and 60. A gallery of pictures and online results are provided. 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