Beast Of The Blacks

Crickhowell, United Kingdom • 6 Mar 2027

Beast of the Blacks - Black Mountains event

The Beast of the Blacks offers trail running on marked routes around the Black Mountains, with start and finish in Crickhowell, Powys. Three route options are provided:

  • 10 Miles / 16.9 KM
  • 20 Miles / 32.5 KM
  • 40 Miles / 65 KM

The 40 mile route follows a reverse of the 20 mile loop. Routes pass forest trails, mountain tops, river crossings and historic churches, and participants may see local wildlife such as red kites. The course is marshalled and has checkpoints stocked with a range of foods and drinks, including options for vegan diets.

Cut off times are set per distance, with longer routes allowing multiple hours to complete. The event is canicross friendly; dogs must be at least 12 months old, fit to run, kept on lead, and remain the owner’s responsibility. Mandatory kit is strictly enforced and checked at registration; required items include a waterproof jacket and trousers, race vest or pack, appropriate base layer, capacity for one litre of fluid, emergency food, map or GPX file, hat and gloves, appropriate footwear, first aid kit and foil blanket, reusable cup, head torch and whistle, and a fully charged mobile phone (power pack required for the 40 mile).

Facilities listed for the event include refreshments, toilets, parking (paid with a ballot for a prize), medical cover, stalls and post-race recovery options. Route GPX files and entry fees for each distance are provided. Visit the organization's website for the most recent information.

Race information

40 mi
40 Mile Ultra Challenge
20 mi
20 Mile Challenge
10 mi
10 Mile Challenge
Visit the organization's website for the most recent information.
Trail runs nearby

A 15 mile trail event around Abergavenny and the Sugar Loaf with 80 percent trail, 3,248 ft of ascent and one fully stocked checkpoint. Mandatory kit is required and there are no time limits.

A 10 km multiterrain race around Dorstone with steep offroad sections and country lanes. A 4 km fun run and a walkers option that welcomes dogs are also offered with day entry fees.

On 11 July 2026 an event in the Black Mountains offers distances from half marathon to 50 mile. Routes are self navigated with GPX files and supported by checkpoints, tracking, food provisions and medical cover.

A timed, multi lap run at Parc Taf Bargoed using a 5.3 km out and back lap. Distances range from 5 km to ultra with a seven hour limit and a medal or no medal entry option.

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