SiEntries Options
Login / Register

Beast of the Blacks 20 & 40

Event Facebook Page
Event Instagram Page
Event Twitter Feed
Event Website

Saturday 27th March 2021

Notice: Due to a security update SiEntries will be unavailable from 11:00am today for approximately 15 minutes. Please complete your entries before then.

Entries Open
Thursday 20th August 2020
Entries Close
Wednesday 24th March 2021
Entry Fees
20 Miles   £45.00   
40 Miles   £65.00   
Event Organiser - Ellen Wood

To enter you must first Log In or Register your Details with SiEntries.

The Beast of the Blacks 20 & 40 are new challenges amongst some spectacular, harsh but stimulating trails within the Majestic Black Mountains of Wales. Attracting runners from the elite to the beginner you will not be disappointed by this event. The event will be marked with added support of marshals. Our pledge not to use tape will stand. A generous cut off time of 8 hours will ensure that you can tame the beast. The 40 mile event will be a reverse of the 20 mile loop so what ever you scenery you miss on the first lap you can capture on the second lap.

Starting near the village of Llanbedr deep in the heart of the mountains you will climb directly onto the Black Mountains. Greeted with outstanding views that will follow you around this beautiful route whilst taking in forest trails, mountain tops, river crossings and ancient churches. Red kites will be your companions besides an abundance of wild life. Spring into Spring and enjoy the Mountains at their very best. 


  • Physios
  • Camping
  • Refreshments
  • Toilets
  • Bar
  • Parking £5 - see below
  • Full Medical Team

What you get 

Bespoke medal, complimentary gift - refreshments

Prizes - 1st 2nd & 3rd Hand crafted wooden trophy, designed & hand carved in Wales - totally unique to us 

              1st Male & Female Vet over 50

Parking tickets will go into a ballot - winning ticket will have a free entry to our next event

Best picture advertising Limitless Trails on SM during this event will win a free entry to our next event 

Two refuel zones - full support from our amazing staff - refreshments and food - first aid 

Full gallery of pictures 

On line results 

20% Discount Voucher for Montane


  • MANDATORY KIT - Waterproof Jacket/trousers, Race vest, base layer, capacity to carry 1 litre of fluid, food, map or gpx file downloaded, telephone, hat & gloves, appropriate footwear (trail shoes) first aid kit, foil blanket, head torch & whistle. Mask & Hand santitiser.No participant will be allowed to participate without full kit. Full kit check at registration, spontaneous checks will be carried out on the event.
  • Please note that we are a cup free event - please remember to bring your reusable cup
  • Current Covid 19 guidleines will and must be followed 


Perth Y Pia
Nr Crickhowell
Black Mountains


Save the date and share

Event Location: