Mt. Snowdon Ultra 50

Get Ready for the Flagship 50 & 100 Mile GB Ultras Race: the eagerly awaited 1st Ever Mt. Snowdon Ultra. Starting from the beautiful Betws-y-coed and following a well marked route with 8 Checkpoints spread out along the course to support runners taking in Mt Snowdon, Glyder Fawr, Glyder Fach, Y Garn, Foel Goch, Elider Fawr, Pen yr Ole Wen, Carnedd Dafydd, Carnedd Llewelyn, & Pen yr Helgi Du making it a 50 Mile you’ll always remember with 17919 ft of Ascent (5462m) and Phenomenal GB Ultras support throughout.

Saturday 22nd September 2018



Take on ALL 4 of our 50 Milers for the Grand Slam Medal & Hall of Fame




Top 100 finishers earn a Gold ‘Mt. Snowdon Ultra’ Medal, 101-200 finishers earn a Silver ‘Mt. Snowdon Ultra’ Medal and 201+ finishers earn the Bronze ‘Mt. Snowdon Ultra’ Medal.
There are additional prizes for the Top 3 Male and Top 3 Female finishers and for the 1st 3 Teams (based on the accumulated times of their first 3 runners).

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Mt. Snowdon Ultra

Ready for the challenge?


Full Race details

Cae Llan/Village Green, Station Road, Betws-Y-Coed, LL24 0AE.
At Start Venue

Friday 21st September 2018.

4.00pm – 9.00pm Registration and Kit Checks.

Saturday 22nd September 2018. – Race Day

4.00am – 5.30am Registration and Kit Checks.
5.30am – 6.00am Race Briefing.
6am Race Start.

All entrants are invited to join the Team on training runs covering the Mt Snowdon Ultra 50 & 100 Mile route prior to Race day. You can attend as many as you like, and one or both days of any given training weekend with the aim of learning the route and increasing confidence should any markings go astray come Race day. You’ll also have the chance to meet other runners taking on the Race.

Saturday 7th April 2018
8am: Start & Return to Betws-Y-Coed (Covering 1st section past Swallow Falls and joining the Snowdonia Slate Trail & also the last sections of the 50 via Crimpiau, Llyn Crafnant & Llyn Geirionydd)

Saturday 2nd June 2018
8am: Start Gwern Gof Isaf to Nant Peris (Covering 9 miles to 29 miles including Heather Terrace, Mt. Snowdon, Glyder Fawr, Glyder Fach)

Sunday 3rd June 2018
8am: Start Nant Peris to Gwern Gof Isaf (Covering 29 miles to 44 miles including Elider Fawr, Pen yr Ole Wen, Carnedd Dafydd, Carnedd Llewelyn & Pen yr Helgi Du)

Saturday 14th July 2018 (100 Mile route)
8am: Start & Return to Betws-Y-Coed (Covering from halfway to 70 miles via Trefriw & Llyn Cowlyd and the last 15 miles and the return to Betws-Y-Coed via Heather Terrace, Y Foel Goch, Capel Curig, Llyn Crafnant & Llyn Geirionydd)

Sunday 15th July 2018 (100 Mile route)
8am: Start & Return to Gwern Gof Isaf (Covering 70 miles to 89 miles taking in the route to Bethesda via Carnedd Dafydd, Carnedd Llewelyn before making the return through the valley)

The training runs are free of charge to attend, we simply ask that runners confirm their attendance via sending an email to and/or joining the GB Ultras Community Forum so that closer to the time we can help make arrangements. The idea would be to have some of the runners cars dropped off at the end point of the day’s run, arrange pick up of said runners from this point and bring them to the Start point. At the end of the day’s running, those with the car’s waiting at the finish point, drop runners back to their cars at the day’s Start point. We find this a sensible approach, promoting car sharing, organisation, avoiding charging for mini-bus hire, and also reducing the impact on the environment.

Pace wise we’ll be going at a nice gentle pace ensuring all runners stay as a group with brief stops approximately every mile.
Generally our training runs have high attendance and for safety reasons we’ll be imposing a limit depending on feedback. There will be no minimum attendance limit as i feel that if i can help just one runner prior to Race day then its been a success.

Weather conditions can change very quickly in the mountains so we recommend runners refer to the Mandatory kit section and carry sufficient food/water for the duration of each of the runs. No overnight accommodation is included. However, runners may be interested to learn that Gwern Gof Isaf is a Campsite and would be a good choice for training run overnight stops.

To download the GPX or KML file for this event simply select the correct file in the menu below.

At least 18 years old + at the time of the race.
In good health
Must have run at least a marathon distance race prior to the event.
This can be for an event not yet taken place but that will be completed prior to Mt. Snowdon Ultra start.

Mt. Snowdon Ultra 50 has 8 Checkpoints en route with the principle aim of maintaining the highest level of support possible.
Cut-Off times per Checkpoint – These conditions include the length of time taken to complete sections of the course and they are implemented by the Event Organisers, GB Ultras, at their discretion, to the ensure safe and proper running of the event.
There is a 24 hour cut off time for the event.

The locations of the Checkpoints are:

Checkpoint 1: 12km SH68988 59962 Gwern Gof Isaf

Checkpoint 2: 19km SH66138 55922 Llyn Pen-y-Gwryd Car Park

Checkpoint 3: 25km SH60823 54937 Mt Snowdon (Water Only)

Checkpoint 4: 34km SH66138 55922 Llyn Pen-y-Gwryd Car Park

Checkpoint 5: 43km SH60858 58067 Nant Peris

Checkpoint 6: 55km SH64998 60382 Pont Pen-y-Benglog

Checkpoint 7: 66km SH68988 59962 Gwern Gof Isaf

Checkpoint 8: 76km SH76443 61503 Llyn Crafnant

Ordnance Survey (OS Explorer): Map OL17 Snowdon/Yr Wyddfa
Waterproof coat with sealed seams, i.e. Goretex
Thermal Base layer (Separate from Start Kit in a dry bag).
Water bottle or bladder -min 1 litre capacity,
Fully charged mobile phone,
Survival blanket,
Emergency Rations.

Recommended Kit
Electrolytes – S-Caps

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

Please car share wherever possible to minimise the carbon footprint as much as possible. ‘Long Stay’ 24 hour Pay & Display parking is available for just £5 at Betws-y-Coed (please bring the correct change, as it’s very unlikely you’ll find anything open so early on Race day). Alternatively, those travelling up on the Friday prior to Race day might be able to make arrangements with their hotel, should they be staying locally.
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 Mt. Snowdon Ultra.

Each ultra runner understands these are there 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 18 years old or over on the day of the Event.
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 (Force Majeure Event).
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. I have read, understood and accept the GB Ultras Ltd Withdrawal Policy.

Extreme care should taken especially at heights where a fall can be serious. Llanberis Search & Rescue along with Ogwen Valley Mountain Rescue have been informed of the event. We’ll also have our own First Aid at Checkpoints too (though the First Aiders will likely be mobile between CP’s). The weather and the amount of miles covered in daylight hours will undoubtedly contribute to the possible dangers encountered during the Race so the mandatory kit must be carried throughout Mt. Snowdon Ultra.

Checkpoints are approximately every 6 mile so the team will be there to support your Race as much as we can. We will also do our very best to sign the route prior to Race day, however, markers may get removed so please make yourself as familiar with the route as you can.
Should you arrive on the Friday evening prior to the Race as opposed to the Saturday morning of the Race we’ll even help mark your map and the Checkpoints on it too. We will also be organising FREE OF CHARGE recce runs covering the route section by section.

Although largely a mountainous route, due to the nature of the event, there are inevitably some road crossings too where it will be necessary to slow and possibly stop as no roads are closed en route for the Race itself.
As always, if you see a runner experiencing difficulties please inform Checkpoint Marshals. Each runner should have the Race Organiser’s mobile number. Our team will always endeavour to reach any participant in difficulty but due to inaccessibility of the Trail this can take time. Participants who lose time helping another fallen participant, struggling against the cut off time due to this reason, can claim this time back, subject to RD discretion and under the proviso of completing within their new, extended cut off period.

In the mountains, the weather can change very quickly so the mandatory kit is mandatory for good reason. Depending on conditions closer to Race day, additional kit may well be required too. Spot checks will be done on Race day and any runner without the mandatory kit will be disqualified.

In order to ensure ‘Event Safety’ is at its very highest for the event, the course the designed to have the support where you need it.

Due to running through mountain terrain, careful footing and approaching the ascent/descents from the correct lines are very important. Also when running in woodland and along trails, be mindful of loose branches, unseen stones, uneven terrain, falling branches, some overgrowth, stiles to negotiate, and slippery surfaces. The main danger is presented by steep drops, close to cliff edges on a number of occasions throughout the Race. So please watch your footing and have a good bearing of where you are. For those new to this type of event, the team is always happy to help with any queries so please feel free to get in touch via . Be mindful and understanding of other users sharing the Trail and please be aware mountain bikes are often frequented in and around Betws-y-Coed, sometimes you’ll hear them before you see them.

As always, if you see a runner experiencing difficulties please inform Checkpoint Marshals. Each runner should have the Race Organiser’s mobile number. Our team will always endeavour to reach any participant in difficulty but due to inaccessibility of the Trail this can take time. Participants who lose time helping another fallen participant, struggling against the cut off time due to this reason, can claim this time back, subject to RD discretion and under the proviso of completing within their new, extended cut off period.

Prior to the race – Due to the nature of the event, costs are incurred as soon as a participant signs up, no refunds are possible in this event. However, GB Ultras understand injuries do occur and 1 years deferment is possible providing we have 8 weeks notice. Alternatively, transfer to another participant is allowed providing these are agreed by ourselves at least 2 weeks prior to the event.

During the race – Unless medically unable, you should only be pulling out of this Race at a Checkpoint (CP)… It is not our responsibility to pick up a runner short of a CP. Please inform a GB Ultras Race Marshal or the Event Director of your withdrawal. This will ensure all participants who are registered and pull out of the race are accounted for, allowing for the accurate and safe running of the event. If a participant withdraws at a Checkpoint they must hand over their race number to race staff to signal their retirement. Marshals’ will inform the race organiser and each of the remaining Checkpoints can then update their lists. A sweeper after the cut off time will take retired participants to the Finish Venue, there may well be a wait to be picked up. Although ultimately decisions to continue are in the hands of the runner, GB Ultras reserve the right to pull any participant out of the race on health grounds.

GB Ultras Running Club

Want to join the GB Ultras Running Club? Head over to the Club page now!

Visit the Running Club Page CLICK HERE

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