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Beast of the Beacons Ultra 40m plus 20m & 10mile

calendar_today 17 Apr, 2027

directions_run Running

language Official Website

sell £44.85 – £75.04

Beast of the Beacons Ultra 40m plus 20m & 10mile

About the Event

The Beast of the Beacons 10 Mile, 20 Mile, and 40 Mile races promise an exhilarating journey through some of Wales' most awe-inspiring landscapes within the Brecon Beacons National Park. These events cater to runners at all levels, from seasoned trail warriors to those new to the sport.
The race begins in Llangynidr village hall, nestled deep inside the park's heartland, and takes participants on a journey that traverses forests, mountains, rivers, reservoirs, and mud-filled trails. As you run through this diverse terrain, expect panoramic views of rugged peaks and serene valleys that will inspire awe at every turn.
Red kites soar overhead while an array of wildlife dots the landscape, making each step feel like an adventure in nature’s wild kingdom. The route is peppered with challenging ascents, rocky paths, soft forest trails, rivers to cross, muddy stretches, and occasional surprises – including snow patches that can persist even into spring.
For those opting for the full 40-mile challenge, you'll get a second lap of the course in reverse direction, offering new perspectives on familiar scenery. Each distance comes with generous cut-off times: five hours for the 10-miler, eight hours for the 20-miler, and sixteen hours for the epic 40-mile run.
A highlight for trail enthusiasts is that this event welcomes canicross runners—those who enjoy running alongside their dogs on a leash. Dogs must be at least one year old, fit to participate, and under strict control throughout the race. While owners are responsible for their pets both during the race and around headquarters, regrettably, no trophies will be awarded in this category due to the unique advantages canicross runners might experience.
The Beast of the Beacons offers a blend of natural beauty and rugged terrain that challenges even the most experienced trail runner while providing an unforgettable adventure for all participants.

Races Offered

10 Mile Trail Running Challenge

Apr 17, 2027

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Distance — 16.1K

terrain

Type — Running

timer

286 days remaining

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£44.85

20 Mile Trail Running Challenge

Apr 17, 2027

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Distance — 32.2K

terrain

Type — Running

timer

286 days remaining

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£55.20

40 Mile Ultra Challenge

Apr 17, 2027

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Distance — 64.4K

terrain

Type — Running

timer

286 days remaining

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£75.04

Weather History

These values represent the 3-year monthly averages for April in Llangynidr.

thermostat Temperature
5.2° / 12.6°
wb_sunny Feels like
1.7° / 8.8°
light_mode Avg sunshine hours
7h 20m
water_drop Avg rainfall
4.0 mm
ac_unit Avg snowfall
0.1 cm
air Avg wind speed
13.9 km/h (Gentle breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Moderate (3.5)
humidity_mid Humidity
82.9%
wb_twilight Sunrise
06:14
nightlight Sunset
20:10

About Llangynidr

Learn more about the host city, Llangynidr.

Scenic view of

Llangynidr is a village, community and electoral ward in Powys, Wales, about 4 miles (6.4 km) west of Crickhowell and 9 miles (14.5 km) south-east of Brecon. The River Usk flows through the village as does the Monmouthshire and Brecon Canal. It is in the historic county of Brecknockshire.

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Hotels & Places to Stay

Runner Reviews

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