X-TR100 LT Duo Relay 50
12th September 2025
The X-TR100 LT Duo Relay 50 is a new relay event that promises to be X-TREME!
Each team of two runners must cover 50 miles each, whilst supporting each other’s nutrition and kit requirements. Your car is your checkpoint. No pacers are allowed for the runner.
Running through the stunning Brecon Beacons National Park and the Black Mountains of South Wales, and with nearly 25,000 feet of total elevation, this is no small feat.
The first team member to complete the first 50 miles will have a recommended rest period to eat and sleep before switching to support their teammate, who will then reverse the 50 miles to complete the challenge. This twist ensures both participants need to be on top form to support each other.
This is the inaugural event of its kind in our area. The combination of technical trails, elevation and diverse terrain, make it a unique and demanding race in these mountains.
Starting in the evening means that both runners will experience running through the night, adding another layer of challenge and excitement.
Finishers will receive a unique medal, split into two parts that lock together, symbolizing the deep connection and trust between team members.
Do you have what it takes?
Are you up for this challenge?
Start Venues:
THE FIRST LEG OF THE X-TR100 LT Duo Relay 50 WILL START AT
LLANBEDR HALL nr Crickhowell NP8 1SR
AND FINISH AT
LLANGYNIDR VILLAGE HALL - Cwmcrawnon Road, Llangynidr, Crickhowell NP8 1LS
BLACKS TO THE BEACONS 50 MILES - “THE SUNRISE LEG”
A Sleep Zone and hot food will be provided for the first team finisher -hot food for the return runner.
THE SECOND LEG STARTS AT
LLANGYNIDR VILLAGE HALL - Cwmcrawnon Road, Llangynidr, Crickhowell NP8 1LS
AND THE RACE FINISHES AT
LLANBEDR HALL - nr Crickhowell NP8 1SR
BEACONS TO THE BLACKS 50 MILES - “THE SUNSET LEG”
THE RACE WILL HAVE FULL TRACKING FOR EACH RUNNER. THIS WILL ENSURE SUPPORT TEAM MEMBERS ARE ALWAYS AWARE OF THE LOCATION OF THEIR RUNNING TEAM MATE.
HOWEVER, PLEASE BE AWARE THAT TIMES ARE APPROXIMATE DUE TO VARIOUS BLACK SPOTS IN THE MOUNTAINS, SO WE SUGGEST THAT YOU KEEP ONE STEP AHEAD TO ENSURE YOU LINK UP WHERE/WHEN REQUIRED.
Registration will be at LLANBEDR HALL on Friday night from 5pm - 8 pm.
Race start time is 9pm Friday.
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 Llanbedr Hall
Camping will be available - see Camping section below
This 100 mile event 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.
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.
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 REG 5PM - 8PM
PLEASE BRING FULL KIT TO REGISTRATION WITH PHOTO ID
APPROX START TIME - 9PM FRIDAY
CUT OFF TIMES
100 MILE DISTANCE - 40 HOURS
Brief Route Outline
LEG 1 - 50 MILES - BLACKS TO THE BEACONS - “THE SUNRISE LEG”
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, and once rested you then reverse the route by car to support your team member.
LEG 2 - 50 MILES - BEACONS TO THE BLACKS - “THE SUNSET LEG”
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.
Each team of two runners must cover 50 miles each, whilst supporting each other’s nutrition and kit requirements. Your car is your checkpoint. No pacers are allowed for the runners.
Both runners need to complete their legs for the team to receive the finishers medal.
Upon completing the challenge, you will both receive a complimentary hot meal, tea/coffee or a beer!
Trail Facilities
Refreshments
Sports Therapy
Full Medical Team
Toilets / Showers
HOT FOOD FOR ALL ENTRANTS
Full Tracking - with support from LT Team on parts of the route
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 litres of fluid
Emergency Food for the duration
Map or gpx file downloaded
Fully Charged Mobile Phone + POWER BANK and charging cable
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.
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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Runner 1 - 50M ULTRA - Blacks to the Beacons
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Runner 2 - 50M ULTRA - Beacons to the Blacks