LT-100 & LT-50s
100 Mile Ultra & 50 Mile Ultra
Beacons to the Blacks or Blacks to the Beacons option for the 50 Mile
The 100 Mile is both directions
12th July 2025
Distance:
50 Miles/80 KM
100 Miles/160 KM
Start Locations
100 Mile Ultra & 50 Mile Ultra Beacons to the Blacks
Llangynidr
50 Mile Ultra Blacks to the Beacons
Llanbedr
Elevation:
50 Mile Ultra = 11655 FT
100 Mile Ultra = 23310 FT
Finish Location
Llangynidr for 100 Mile and 50 Mile Blacks to the Beacons
Llanbedr for 50 Mile Beacons to the Blacks
50 Mile Ultra - 24 HR CUT OFF
100 Mile Ultra - 40 HR CUT OFF
All distances are
Self Navigation
TRACKING ON ALL DISTANCES
Limitless Trails is thrilled to present this unique 100 MILE ULTRA, featuring two distinct 50 MILE ULTRA distances, specifically designed for trail enthusiasts.
Covering the beautiful Black Mountains and the Brecon Beacons National Park in South Wales, this long-distance race offers two seperate 50-mile challenges. Runners can choose one or attempt both to conquer an epic 100-mile journey.
All three distances will have exceptional support, with well stocked checkpoints throughout the race. Support crews and spectators are welcome, and participants will be fully tracked for safety.
Our experienced team, deeply familiar with these mountains, will ensure you are well supported and safe.
Why Choose This Event?
Mental and Physical Challenge: The LT-100 is not just a physical test but a mental one. Turning around at the 50-mile checkpoint to face the same distance again requires immense determination and self-belief. The breathtaking views you enjoyed on the first leg will be waiting for you on the return!
Unmatched Support: Our team knows every mile of this terrain. You’ll never feel alone, as we provide continuous support, nourishment, and encouragement to make your experience unforgettable.
Exclusive Rewards: To celebrate our inaugural LT-100, finishers will receive a unique medal and T-shirt. Additionally, all nutritional needs will be met, courtesy of Science in Sport (SIS).
Join us for an experience of a lifetime in the beautiful trails of South Wales!
Start Venues:
THE 100 MILE - WILL START AND FINISH AT
LLANGYNIDR VILLAGE HALL - Cwmcrawnon Road, Llangynidr, Crickhowell NP8 1LS
THE BEACONS TO THE BLACKS 50 MILE WILL START AT THE ABOVE LOCATION AND FINISH AT
LLANBEDR HALL, Nr Crickhowell, Powys NP8 1SR
THE BLACKS TO THE BEACONS 50 WILL START AT THE ABOVE LOCATION AND FINISH AT
LLANGYNIDR VILLAGE HALL - Cwmcrawnon Road, Llangynidr, Crickhowell NP8 1LS
Participants will be transported to the start from the finish where required.
Registration will be at LLANGYNIDR HALL on Friday night from 6pm - 8 pm, and Saturday morning at the chosen start line.
Exact timings will be sent out via email prior to the event.
What to Expect
Friday evening the Team will welcome you to Race HQ at Llangynidr Hall
Camping will be available in a field located within walking distance of both locations.
Day parking £5 - ticket ballot for a free entry to one of our races
Various pubs and cafes can be found in the villages
Registration and kit check will be available on Friday for an easier pre-race morning. For those unable to attend Friday please do not worry as there will also be registration available from 5 am-6 am Saturday morning, tbc via event email.
Transport to the start will be arranged for both distances to start together approx 7.30am so we will be leaving HQ @ 6.45am TBC
The 100 & 50 mile events will take in the highest peaks in both the Black Mountains and the Brecon Beacons
The routes are 90% trail / 10% road (lanes)
This Trail Challenge is a self-navigation experience, however we will place flags and signs in certain areas to avoid any confusion.
We stand by our pledge never to use tape.
Participants will be tracked by our team throughout the entire race. Family and friends will be able to monitor and support each runner.
A GPX file and a map will be provided.
Each competitor must pass a stringent kit check during registration.
There will be safety support on your challenge from our first-class Medical team.
The Limitless Trails Team will do everything to make this challenge an amazing achievement and experience, whether it’s your first attempt at a 100 or 50 miler, or you are a gnarly veteran of such distances!
On route, we will be supporting you with Check Points and water stations, and to go that step further we will provide hot food where possible.
Medical advice given to any runner not to continue must be followed, if not then the organisers do not accept any responsibility if the participant continues. They do so at their own risk.
Any runner who assists an injured participant / or similar will gain a time reward.
We will have a team of physiotherapists on-site to offer relief for those weary bodies at various times on the day.
Support crews, friends and families are more than welcome to attend, however we do ask that runners take precedent.
Please keep the noise down to a minimum and be considerate when parking, as our HQs are in residential areas.
More details will follow closer to the event.
START TIMES
START TIMES WILL BE CONFIRMED VIA EMAIL - SUNDAY BEFORE THE EVENT
APPROX PROPOSED TIMES - FRIDAY EVENING PRE REG 6PM - 8PM TBC
PLEASE BRING FULL KIT TO REGISTRATION WITH PHOTO ID
APPROX START TIMES - 7.30 AM, EXACT TIME TBC BEFORE THE EVENT
CUT OFF TIMES
50 MILE DISTANCES - 24 HOURS
100 MILE DISTANCE - 40 HOURS
Brief Route Outline
100 MILE - Starting at Llangynidr Hall the route takes you straight up to the Beacons - once the peaks of the Beacons have been beaten, you then cross the mountains of Bwlch and Llangorse to enter onto the Black Mountains, where after covering the highest peaks you will drop down into the Llanbedr Valley. Once fed and watered at the half way point, you then reverse the route. You will finish at Llangynidr Hall.
50 MILE - BEACONS TO THE BLACKS
Starting at Llangynidr Hall, the route takes you straight up to the Beacons - once the peaks of the Beacons have been beaten, you then cross the mountains of Bwlch and Llangorse to enter onto the Black Mountains, where after covering the highest peaks you will drop down into the Llanbedr Valley. You will then be fed and watered.
50 MILE - BLACKS TO THE BEACONS
Starting at Llanbedr Hall, the route will take you up to the highest peak of the Black Mountains, you will then drop down the valley to gain passage way over the Llangorse and Blwch Mountains. The route will then take you up to the Brecon Beacons. Once you have beaten these peaks you will finish at Llangynidr Hall. You will then be fed and watered.
Trail Facilities
Local campsite tbc
Refreshments
Sports Therapy
Full Medical Team
Expedition Events Coffee
Toilets
Kiddies Corner
Captain Browns Pizza
HOT FOOD FOR ALL THE ULTRA ENTRIES
ALL DISTANCES ARE SELF NAVIGATION - TRACKING WILL BE IN PLACE - SOME ESSENTIAL SIGNS ON THE ROUTE
MANDATORY KIT
Waterproof Jacket and trousers
Race vest/pack
Baselayer Top - Must be either synthetic or merino wool, we suggest spare socks
Capacity to carry 2 litre of fluid 50 & 26 only
1 Litre for the half & 10k
Emergency Food for the duration
Map or gpx file downloaded
Fully Charged Mobile Phone + POWER BANK for the 50/32 & 26 only
Hat & gloves
Appropriate footwear (trail shoes)
First aid kit - essential items
Foil blanket
Reusable Cup
Head torch & whistle + spare batteries
No participant will be allowed to participate without the full kit. A full kit check will be undertaken at registration and spontaneous checks will be carried out on the event. There will be NO changes to the mandatory kit lists due to weather - the mountains are unpredictable.
Please note that we are a cup free event - please remember to bring your reusable cup.
CAMPING
We have a field with toilets within walking distance of HQ for basic camping. No need to book, we’ll share details on the pre-race email.
Anyone looking for a bit more luxury may want to consider our friends at Pyscodlyn Camping and Caravan site very close to Abergavenny and Crickhowell. Booking essential:
https://pyscodlyn.sb.anytimebooking.eu/place_booking/#forward
For an alternative, rustic farm camp close to Crickhowell, and right below Table Mountain, consider Ty Mawr Camping Field in Llanbedr, Powys. Call Donna on 01873 810606.
POST-RACE RECOVERY SAUNA AND ICE BATH!
To soothe those aching limbs and speed up your recovery, why not consider our friends at Cwmdu Contrast Fire and Ice? Check out their website to book this great experience in a wonderful natural setting, right on our doorstep:
https://cwmdu-contrast.square.site/
RACE GPX FILES
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Blacks to the Beacons 50 Ultra
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Beacons to the Blacks 50 Ultra
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LT 100 Mile Ultra
£190
100 Mile Ultra Marathon
£100
50 Mile Ultra Marathon