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Beast of the Blacks 10,20&40 Mile Ultra

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Saturday 9th March 2024

Entries Open
Thursday 13th April 2023
Entries Close
Sunday 3rd March 2024 at 18:00
Entry Fees
10 Miles   £42.00   
20 Miles   £53.00   
40 Miles   £73.00   
Event Organiser - Ellen Wood

The Beast of the Blacks 10, 20 & 40 are brutal 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. The cut off is 16 hrs 

Starting in the heart of the village of Llanbedr set deep in the mountains. The start will lead you from the village hall to the base of Perth y Pia. You then begin to climb directly onto the Black Mountains. Greeted with outstanding views that will follow you around this beautiful route, whilst taking in forest trails, mountain summits , river and stream crossings, and an ancient church with many remains along the way. 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
  • Parking £5 - see below
  • Full Medical Team
  • Barista 
  • Funky sports wear
  • Pizza
  • and more

What you get 

Bespoke medal,


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

              1st Male & Female Vet over 50

Winning Dog trophies

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 

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

Full gallery of pictures 

On line results 



  • MANDATORY KIT - Waterproof Jacket/trousers, Race vest, base layer, capacity to carry 1/2 litres 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 sanitiser.
  • No participant will be allowed to participate without full kit. Full kit check at registration with photo ID, 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


Nr Crickhowell
Black Mountains

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