BY APPLICATION ONLY!  Each participant must apply to take part in the race to ensure they have suitable experience to take on the Race Across Bannau Brycheiniog.

At least 20 years old + at the time of the race (Rule T3 (141) S5 UKA Trail Running).

In good health. The ability to self navigate using a map and compass is required and expected.

Each participant must have successfully completed at least a 50 mile distance ultramarathon race prior to their application.

Start Venue

Abergavenny Castle, Castle Street, Abergavenny, NP7 5EE

Friday 25th July 2025

17:30 – 21:00 – Race Registration, Kit Check, Bib Number Collection Only.

If you collect your bib number on Friday evening, you will still need to return during the times below on Saturday to collect your Race Tracker.  The Race Tracker device is part of your mandatory kit – if you do not collect this, you will not be permitted to race.

Saturday 26th July 2025

04:15 – 05:45 – Race Registration – Kit Check, GB Race Tracker Collection, Bib Number Collection & Drop Bag Drop-off

06:00 – Race Start

Finish Venue

Llangadog RFC, Heol Pendref, Llangadog SA19 9EH

Beacons Way Ultra 100 Mile Ultramarathon has 10 Checkpoints en route with the principle aim of maintaining the highest level of support possible across the Brecon Beacons National Park.

Each of the checkpoints have refreshments including cola, tailwind, water and juice as well as a variety of sandwiches, salted potatoes, fruit, snacks, crisps and chocolate. Vegetarian and vegan refreshments will be available. At indoor checkpoints, hot food such as pasta, beans on toast will be available along with hot drinks. We’ll also have a Medic, First Responder or a First Aider available at each CP.

There are strictly enforced cut-off times per Checkpoint implemented by the Event Organisers, GB Ultras, to ensure a safe event.  Checkpoint distances are approximate and may vary each year should there be minor diversions on the route (due to local authority/landowner works).  You must enter the checkpoint before the cut off time to proceed further in the event.  Should you pass through the Checkpoint in time, you may stay at the relevant checkpoint for no more than 20 minutes after the cut off.

Participants must attend ALL checkpoints and have their details recorded by the Checkpoint teams. Failure to check-in at a Checkpoint will result in your disqualification from the race.

The locations of the Checkpoints are:

Cut off times and Checkpoints:

Checkpoint 1 – 7 Miles
Outside of The Skirrid Mountain Inn, Llanvihangel Crucorney, Abergavenny, NP7 8DH. WATER ONLY.
Coordinates: SO32550 20630.
Cut Off: 08.48 Saturday

Checkpoint 2 – 13 Miles
Llanthony Treats Campsite, Honddu Cottage, Llanthony, NP7 7NN.
Coordinates: SO28804 27759.
Cut Off: 11.12 Saturday

Checkpoint 3 – 26 Miles
Crickhowell Village Hall, 4 Church Lane, Crickhowell, NP8 1BB.
Coordinates: SO21664 18393.
Cut Off: 16:24 Saturday
NO SUPPORT CREWS PERMITTED

Checkpoint 4 – 36 Miles
Bwlch Village Hall, Bwlch, LD3 7HJ.
Coordinates: SO14615 22337.
Cut Off: 20:24 Saturday

Checkpoint 5 – 45 Miles
Talybont. Blaen y Glyn Uchaf car park, Talybont-on-Usk, Merthyr Tydfil, CF48 2UT/LD3 7YT.
Coordinates: SO05610 17560.
Cut Off: 00:00 Sunday

Checkpoint 6 – 52 Miles
Storey Arms/Pont ar Daf car park, Brecon, LD3 8NL.
Coordinates: SN98270 20280.
Cut Off: 02:44 Sunday

Checkpoint 7 – 59 Miles
Sarn Helen car park, Blaen Ilia, Ystradfellte, Aberdare, CF44 9JD/CF44 9JG.
Coordinates: SN92730 16435.
Cut Off: 05:36 Sunday

Checkpoint 8 – 65 Miles
Penwyllt car park – South Wales Caving Club, A4067, Tase-Uchaf, SA9 1GQ
https://what3words.com/exacts.constants.again
Cut Off: 09:12 Sunday

Checkpoint 9 – 78 Miles
Neuadd Llanddeusant Village Hall, Llanddeusant, Llangadog, SA19 9YB.
Coordinates: SN76050 24870.
Cut Off: 13:12 Sunday

Checkpoint 10 – 87 Miles
Mountain View, Mountain Road Car Park, A4069, Llangadog, SA19 9PA.
Coordinates: SN73260 18827.
Cut Off: 16:48 Sunday

Finish – 102 Miles
Llangadog RFC, Heol Pendref, Llangadog SA19 9EH
Cut Off at 22:00 Sunday

Mandatory Kit

Waterproof trousers
Hardcopy Ordnance Survey Explorer OL12 & OL13 (Brecon Beacons) or Harvey Maps XT25/XT40 (Please note increased detail on OS Explorer)
Waterproof coat with sealed seams, i.e. Goretex – Min 10,000mm — Recommended 20,000mm.
Base Plate Compass
Base layer long sleeved (Separate from Start Kit in a dry bag).
Water bottle or bladder -min 1 litre capacity,
Fully charged mobile phone,
Thermal Survival Bag or Bivi bag,
Headtorch – Min 75 Lumens,
Emergency Rations – Min 500 Calories,
Whistle,
Backup Light source – Min 25 Lumens (Not your phone),
GPS Tracker (property of GB Race Tracker – given at Race Registration),

Please be aware GB Ultras Races Now Cupless! You can buy a GB Ultras reusable cup CLICK HERE to visit the shop.

GB Ultras Merchandise

We’ll have a range of our GB Ultras branded merchandise available at both race registration and at the finish.

• Beanies & Caps
• Clothing
• Drybags
• Enamel cups
• Hoodies
• Running vests
• Soft cups
• Technical t-shirts
• Visors

Optional Finisher T-shirt 

If you’ve pre-ordered your optional finisher t-shirt, you’ll be able to collect this during race registration on either day, or after you finish the race.  To make sure yours is waiting for you to collect, you can order it here if didn’t order one when you entered the race.

Availability is limited and finisher t-shirts won’t be available on the day to purchase!

Runners can utilise a Dropbag facility to transport a change of kit/supplies to two points during the race and also an additonal dropbag which will head to the Finish line venue.

Dropbags will be transported to dedicated checkpoints, CP5 (Talybont) and CP9 (Llanddeusant).  These should be different dropbags.  Please do not leave valuables.

As an example, a Dropbag may contain a change of clothes, etc to meet you at the finish venue.  Any dropbag should be clearly labelled with the participant’s Surname & Race number at Registration. Labels will be provided at Race Registration on race morning.

Dropbags must be no larger than 50L.  Bags larger than this size will be refused.

GB Ultras recommend participants use a medium size pack a similar size to a cabin case, approx capacity 37 litres (55cm x 39cm x 20cm). Alternatively, you can purchase one of our drybags from our online store here: Large Dry-bag

Dropbags can be left at race registration ON RACE DAY ONLY.

Dropbags can be left between 4:15am and 5:30am with the Event Team in a designated area.

Support crews are more than welcome to pick up dropbag’s providing prior authorisation is given by the runner (at Race Registration) and early collection by the runner is fine too.  Please note dropbags at checkpoints at different locations during the race will only make their way to the finish venue when the checkpoint in question closes.

In the event that you withdraw from the race before reaching the finish, you must collect your dropbag from the finish venue.  Dropbags will not be transport to locations along the route.  Any dropbags not collected from the finish line will be disposed of after the event.  We are not able to post out dropbags that are not collected.

Optional coach travel back to Abergavenny Castle is available at a cost of £27.99 per person.
Coach departs Llangadog RFC to Abergavenny (Approx 22:00 pm Sunday).

Runners can rest at the finish venue while awaiting coach transport.

Please plan ahead & book early to avoid disappointment.  Places on the coach can be added to your race entry during the registration process and will not be available to purchase on the day. 

Please note 2024 seats were at capacity 10 weeks prior to the race.

A single pacer/ support runner is permitted from the halfway point of the race at Checkpoint 5.

Only one pacer is permitted to join the participant at anyone time and the pacer must not carry any of the runners mandatory kit. A pacer must be on foot.

Pacers must be self-sufficient throughout the time they are supporting the participant and will not be able to make use of any of the checkpoint provisions. Pacers must not enter the checkpoint locations except to use toilet facilities.

Pacers MUST carry all items listed in the Mandatory Kit list.

No parking is available at the start location.

Byefield Lane Car Park in Abergavenny is a long stay car park located approximately 1/4 mile from the start venue. Address is 57 Tudor Street, Abergavenny NP7 5DL.

Limited chargeable parking is available in the other public car parks nearby. 

At any of the parking locations, vehicles are left at your own risk.

We’ll be posting the links to the official media team photographs here after the race has finished.  Please keep checking back to find yours.

Processing and editing the photographs does take some time so please allow 48-72 after conclusion of the race for the links to be added.

We’ll also be adding photographs taken by the event team on our Beacons Way Ultra Facebook page and in the GB Ultras Community Facebook Group as well!

2024 Event Photographs

Dan Bentley Photography: Finish Line headshots Printed versions of the digital images can be purchased here: Photo Order Form

David Murch (Mick Hall Photos): Start Line and course photos

Ridgeline Media: Start Line, course photos, Finish Line

Joel Jamesson: Start Line, Course Photos

Tosh Simpkin: Across the route

GB Ultras Event Team: On the Trail Photos

Monika Dratwa: On the course, Finisher Photos, Team Photos

The results will be available real-time during the event and we’ll update this page with the link prior to the event.

As each runner crosses the finish line, their race chip records their individual finishing position and finishing time.

Your position and time shown in the results link is your official result. Please note that the tracking system is different to the timing system and has no bearing on your chip time or result.

Beacons Way Ultra-Marathon Admission Waiver

Each ultra runner agrees and understands the full nature of an Ultra-Marathon. That an Ultra-Marathon involves running throughout the day and well into the night at times with limited rest over challenging terrain with inherent risks of changing weather conditions. Each ultra runner understands that it is their responsibility to adequately train for the event, and monitor their own health throughout and are ultimately responsible for their own safety. Criteria ensures that a runners safety depends on their own skills and abilities and these have been gained from other events placing them in good stead to take on the mental and physical challenges of Beacons Way Ultra 100.

Each ultra runner understands these are their responsibilities not those of GB Ultras.

Please read these terms and conditions carefully and make sure that you understand them, before placing an entry on our site. By submitting your entry form, you agree to be bound by these terms and conditions (“the Terms”), and by submitting, you declare that you hereby, for yourself, your heirs and executors, administrators, successors, and assigns, declare that:-

1. I hereby agree to comply with the Conditions of Entry and all event rules and regulations as set down by GB Ultras Ltd (“the Event Organisers”) a company registered in England and Wales under company number 09397186. These conditions include the length of time taken to complete sections of the course which may be implemented by the Event Organisers, at their discretion, to ensure safe and proper running of the event.
2. I agree that the decision of the Race Referee will be final in all circumstances and no discussion will be entered into.
3. I agree to conduct myself in a sporting, professional and cautious manner during my participation in the event and understand that I may be disqualified if I do not do so.
4. I understand participation in this Event is physically strenuous and demanding and am fully aware of the nature of the event and all associated medical and physical risks involved. I further certify that I am physically capable of competing in this Event and I will only compete if I am fit enough to do so.
5. I will be immediately disqualified from the Event if I am found to have intentionally shortened the route to the race, and found to be deliberately littering the course.
6. If I have any medical condition(s), including allergies, which the Event Organisers or Event medical advisors might need to be aware of, I have provided details of this on my entry form, and will also provide written details of this on the rear of my pin-on numbers prior to my participation in the Event. I agree to display my number at all times during the Event.
7. I acknowledge that my pin-on number is personal to me and it is non-transferable under any circumstances.
8. I understand and agree that I participate in this Event entirely at my own risk, that I must rely on my own ability in dealing with all hazards, and that I must conduct myself in a manner that is safe for myself and all others throughout the duration of this Event.
9. I agree to retire immediately from the event if ordered to do so by the Event Organisers, any government official or member of the emergency services.
10. I accept full liability for any medical expenses incurred as a result of training for and/or participating in the Event
11. I accept that the Event Organisers, sponsors, race officials, medical advisers and any person involved in the organisation of this Event are not liable for any injury or illness or resultant death that I may suffer as a result of my participation in the Event, whether prior to, during or subsequent to the Event. I enter the race entirely at my own risk. I renounce any rights and claims for damages that I may have against the Event Organisers, sponsors, race officials, medical advisers and any person involved in the organisation of this Event together with their officers, directors, shareholders, successors and assigns, (collectively, “Releasees”) and release them from all liability to the Participant and his/her personal representatives, assigns, heirs, executors, and successors for loss(es), damage(s) and claims therefor on account of injury to Participant or his/her property or the resultant death of Participant, whether caused by the active or passive negligence of the Releasees or otherwise, in connection with Participants involvement in the Event (“Losses”), and further covenants not to sue any of the aforementioned parties for such Losses.
12. Whilst the Event Organisers take every care with the staging of the Event, I accept that I must make all reasonable precautions for the safeguarding of my person and of my property during my participation in this Event. I further acknowledge that personal accident and personal items insurance is my responsibility.
13. I understand that at registration, I must produce photographic identification.
14. I am aware that when running, the function of the marshals is only to indicate direction and that I must decide if the movement is safe.
15. I accept that, in relation to my participation in this Event, I am required to obey instructions from marshals and relevant signage before, during and after the Event.
16. The Event Organisers introduce cut off times for completion of sections of the course as they see fit. These will be made clear prior to the race. Competitors may be instructed to withdraw from the Event in accordance with the imposed cut off times.
17. I accept that the Event Organisers reserve the right to amend the event format or cancel the Event due to health and safety reasons, including storm, rain, inclement weather, winds or any other act of god conditions. I accept that my Entry fee shall be non-refundable in this circumstance as costs have already been incurred.
18. I accept that the Event Organisers will do their utmost to provide me with a finish time following my completion of the Event, however they will not be held responsible for any computer result anomalies.
19. I will be 20 years old or over on the day of the Event (Rule T3 (141) S5 UKA Trail Running).
20. I have read, understood and accept the GB Ultras Ltd Withdrawal Policy.
21. I understand that confirmed entry to this event is dependent on a fully and accurately completed online Entry Form; and receipt of payment to cover my Entry fee at least 10 working days (2 weeks) in advance of the event. If either of these conditions is not fulfilled then my entry will not be valid nor accepted, and I will not be eligible to take part in the Event.
22. Through my completion and submission of the online Entry Form, I am committing to paying for my Event entry via the means as instructed on the GB Ultras Ltd website.
23. I irrevocably consent to my appearance in any media format, in relation to the publicity of this Event, and in future publicity and advertising of GB Ultras Ltd; provided that such use does not imply my direct endorsement of any official sponsor or suppliers of the Event.
24. All decisions and rulings by the Event Organisers, its employees and its agents are considered final.
25. The Event Organisers reserve the right to vary these conditions by giving notice to in writing in any official event material or correspondence prior to the Event.
26. A person who is not party to these Terms shall not have any rights under or in connection with them under the Contracts (Rights of Third Parties) Act 1999.

27. We will not be liable or responsible for any failure to perform, or delay in performance of, any of our obligations under the Terms that is caused by events outside our reasonable control.

A Force Majeure Event includes any act, event, non-happening, omission or accident beyond our reasonable control and includes in particular (without limitation) the following: strikes, lock-outs or other industrial action; civil commotion, riot, invasion, terrorist attack or threat of terrorist attack, war (whether declared or not) or threat or preparation for war; fire, explosion, storm, flood, earthquake, subsidence, epidemic or other natural disaster; impossibility of the use of railways, shipping, aircraft, motor transport or other means of public or private transport; impossibility of the use of public or private telecommunications networks; the acts, decrees, legislation, regulations or restrictions of any government; and pandemic or epidemic.

28. You agree that we may publish your Personal Information as part of the results of the Event and may pass such information to the governing body or any affiliated organisation for the purpose of insurance, licences or for publishing results either for the event alone or combined with or compared to other events. Results may include (but not be limited to) name, any club affiliation, race times, occupation and age category. You consent that your details maybe passed onto GB Race Tracker Ltd and Race Tracker AS to ensure the smooth and accurate running of the Tracking software. Your details may also be passed onto 3rd parties via Live tracking so that your family and friends and the general public can follow every entrants position during the Race.

29. Should a GPS Tracker be damaged, lost or stolen then the entrant agrees to cover the cost of the tracker which is £150 + VAT per GPS tracker.

30. Upon withdrawal or completion of the Race, the runner agrees to return the GPS tracker to the Race Organiser. If a GPS tracker is not returned to a dedicated Race Marshal at Race HQ then the runner will be charged £150 + VAT.

31. I have read, understood and accept the GB Ultras Ltd Withdrawal Policy.

32. GB Ultras reserve the right to refuse and/or refund entry based on previous conduct with ourselves.

If you see a runner experiencing difficulties please inform Checkpoint Marshals. Each runner should have RACE HQ mobile numbers stored in their phone (shared in the Race Instructions email in the weeks prior to the event).

It is the role of the entrant to be self-sufficient. Should an incident occur, our team will endeavour to reach any participant in difficulty as quickly as possible, with Event staff stationed in hard to reach locations. Phones must be used only in an emergency to conserve battery power should the need arise.

Participants who lose time helping another fallen participant, can claim this time back, subject to RD discretion and under the proviso of completing within RD agreed conditions. Please note any extended time will be ‘within’ the cut-offs of the event, due to event staffing, medical cover and venue hire.

GB Race Tracker provide the Live Online GPS Tracking for the event with updates on participant positions approximately every 2 minutes (subject to signal). On the front of each tracker is an SOS button which when pressed immediately alerts the Race Director & Race HQ that urgent help is required who can then act accordingly.

In the event of a Medical Emergency please call Race HQ first.

Become a valued member of the Beacons Way Ultra 100 Mile team supporting runners at checkpoints during the race!  Experience the event from the other side and make a difference! 

Race Marshal roles are designated prior to the event with different roles to suit the individuals availability during the set-up, race duration and de-rigging phases on the event. Race entry costs can also be waived for the same event in the following year providing the criteria of a minimum 8 hours volunteering (50 Mile) or minimum of 14 hours volunteering (100 Mile) is met.

You’ll also receive a GB Ultras Event Team t-shirt (subject to availability) to wear during your time at the event.

All of the runners are exceptionally grateful of your fundamental part in their race experience. 

To APPLY to become an event marshal with GB Ultras for any of our events at please complete and submit your details on the Volunteer form on our website here.