Tenacious Ten
May 9th 2026
Event Website
Tenacious Ten Hour Endurance Challenge
| Solo (per person) | £60.00 | |
| Pair (per team) | £110.00 | |
| Team of 4 (per team) | £170.00 |
To enter you must first Log In or Register your Details with SiEntries.
Mynydd Troed - Pengenfford- Nr Talgarth, Powys - LD3 0EY
Mynydd Troed is our location. You will experience a few false summits before reaching the peak, which gives you incredible 360 degree views of not only the Black Mountains but the Brecon Beacons too, with the beautiful Llangorse Lake nestled deep in the valley.
The course route is a short 2.7mile loop, but don't underestimate it, the elevation will make you understand why! :)
The first lap will go up and then return from a clockwise direction. After that, it’s up to you which direction you choose to take.
The 10 hour 2.7-mile strenuous and technical loop race is a test of endurance and determination. More than 1000FT of elevation per lap! This is only for the brave!
Can you beat the course record of 17 laps?!
This event is open to teams of 4, pairs and solo entrants.
Starting at the base of the notorious Mynydd Troed, a harsh and brutal climb takes you to the summit (eventually:)). The second part of the route, you will find runnable sections, however be prepared for some very technical and steep downhills, before you are blessed with some open common trails.
This order is reversed should you decide to go anti-clockwise at any point.
There are two clip stations en route, one at the trig point and the second at the base of the mountain. You will have a laminated card to clip, which will confirm that you have completed each lap.
The route is fully marked.
A strict 10 hour cut off will be in place- any participant that does not reach base before the final bell will not have that loop recorded, this only adds to the challenge to ensure you are fast enough to beat that bell!
Team entries will be a collective number of loops, even if a team player drops out. Last man standing approach - Teams must be named.
Strict rules will apply - any runner whom the medics deem unable to carry on will only continue at their own risk. The event organisers will take no responsibility for such actions.
Come along and Conquer the Mountain.
dd Troen.
- Refreshments
- Toilets
- Parking
- Full Medical Team
What you can expect
Bespoke medal
Refreshments
Prizes - 1st PRIZE Hand crafted Welsh slate trophy, designed in Wales - totally unique to us
Parking tickets will go into a ballot - winning ticket will have a free entry to our next event
Review competition
Refuel zone - full support from our amazing staff - refreshments and food - first aid
Full gallery of pictures
Online results
IMPORTANT
- MANDATORY KIT - Waterproof Jacket/trousers ( tbc on the day) Race vest, capacity to carry water, telephone, hat & gloves, appropriate footwear (trail shoes) first aid kit, foil blanket,. No participant will be allowed to participate without full kit. Full kit will be advised weather dependent
- Please note that we are a cup free event - please remember to bring your reusable cup
- This will be weather dependant
View the Event Disclaimer / Terms and Conditions.
View the Event Cancellation / Refund Policy.
Save the date and share
