Enter the 2020 Virtual Eryri Rhithiol via this link and you can read all you need to know via the FAQs here



The inaugural Snowdonia Marathon was held in 1982, and was conceived as a dramatic alternative to the numerous city and town races becoming so popular. The demanding and spectacular route, encircling Snowdon, Wales’ and England’s highest peak, has given the event a unique place in the annual marathon calendar ever since.

Route and Profile

Race start time is 10.30am from just outside Llanberis. The route follows the A4086 and climbs to the top of the Llanberis Pass (Pen y Pass 1.100ft). Dropping down to the Pen Y Cwyryd junction, the race then follows the old road along to the campsite until it joins the A498. This 2km section is farm track, downhill, then the surface returns to the tarmac. There is a short, sharp uphill back up to the main road at the campsite. The route then continues to the Beddgelert (200ft) and then continues along the A4085 to Waunfawr. From here it is a rapid climb to about 1,200ft at Bwlch y Groes (a short length is unmetalled) and then downhill to the finish in Llanberis.

2021 Course Map (pdf)2021 Course Profile (pdf)

2021 Ballot Entry Proceedure

When does the ballot open and close?

The ballot opens at 9:00 am on Sunday December 1st 2019 and will close at midnight on Sunday December 8th 2019

Where will I find the link?

The link to enter the ballot will be posted on our website and on our social media pages

What information will I need?

You will be asked your name, date of birth, email address, postal address, phone number and where applicable, number of previous Snowdonia Marathon Eryris completed and your marathon PB

How many places will each person be able to apply for?

There will be strictly one place for each applicant.

When will the results be announced?

The results will be announced on January 1st 2020

How will I know if I am in?

Successful applicants will be sent an email with a link that they can use to enter and pay. This link will be valid for two weeks. Failure to enter in that 2-week period will mean a loss of the place.

What happens to places that aren’t used?

Places that have not been claimed will be put back for a second ballot draw which will take place on January 31st 2020

If entrants find that they can no longer use their places, will transfers still be allowed?

Yes, entrants will be able to pass places on themselves as in previous years.

Is there a good for age qualification?

No, we have decided not to include this. The ballot will take a distribution across the age categories.

Transferring an Entry

If you find that you need to change any of your information between now and race day (if you move house, change running clubs etc.) you can easily log back in to your information and make these changes yourself. You can do this via the log in details on the email receipt when you originally entered the race.

If you want to transfer your place to another runner you can also do this yourself by logging in and giving the new runner’s name and email address. They will then be sent an email to complete the process.

Any changes need to be made before September 30th2021. After this time the database is shut down for numbering etc. Any changes made after this will not be allowed.

Raceday Information

Registration will take place alongside the Electric Mountain Visitor Centre (LL55 4UR) at our Marathon event centre from midday until 10.30pm on Friday 29th October 2021 and again from 6.30am until 10am on the morning of Saturday 30th October. This is when you will be given your race pack.

Runners can park at any one of a number of Pay Display car parks around the village. All are within easy walking distance of registration. Please be environmentally aware and try to share transport to the race wherever possible.

Please be aware that the weather at this time of year can be quite challenging and you are advised to carry some sorts of body cover with you whilst running.


Our race HQ is in Electric mountain, Llanberis, the start is just outside the village on the A4086. The race finishes in Llanberis which is located 66 miles from Chester, 103 miles from Manchester and 270 miles from London.


Full travel information and trains available here