2026 Eden Project Marathon and Half Marathon

Please choose your event:

Eden Project Marathon and Half Marathon

18 October 2026

About the Eden Marathon

A firm fixture in the running calendar, the Eden Project Marathon and Half Marathon offers hilly multi-terrain courses around the famous site, following a challenging route through areas of spectacular mining heritage and beautiful countryside landscapes.

Pricing 2026

Early bird – entries will open on TBC and will close on TBC (or earlier if places have sold out)

Marathon Early Bird: £43 (100 places available)

Half Marathon Early Bird: £37 (200 places available)

Full Price entries – entries will open on April 8th and will close on September 30th (or earlier if sold out)

Marathon Full price: £48

Half Marathon Full Price: £43

Race features

Here are just a few reasons why we think you’ll enjoy the Eden Marathon:

·         Themed medal for all race finishers

·         Pasty and a beer for all race runners – where else but Cornwall?

·         Cash prizes for race winners and prizes for category winners

·         Free entry to Eden for runners and accompanying family members and supporters on the day.

·         Water stations every three miles and isotonic drinks every seven miles

·         Chip timing, and free online analysis of your race via RunPix

You'll be supporting the creation of wildflower habitats here at Eden to help wildlife and pollinators thrive. This is our alternative to providing race t-shirts, as hundreds of them are not collected or not worn after events every year nationwide. If you would still like to purchase a souvenir t-shirt of the event, these will be available to purchase shortly.

Run for Eden

Take on the Marathon or Half Marathon and support the Eden Project to deliver world-class environmental education, innovative community programs, and immersive experiences that focus on nature and social recovery.

We ask that you pledge to raise at least £250 to celebrate our 25 year anniversary - that’s just £10 for each year that Eden Project has acted as a hub of inspiration, positive change and action – and we’ll thank you with complimentary entry to the event, a complimentary tech t-shirt and fundraising support.

Please contact fundraising@edenproject.com for more information and to sign up to fundraise for Eden.

Why we set up this Marathon

We created the course through Cornwall's dramatic Clay Country not only to offer a unique sporting experience for runners nationwide, but to showcase the unique region on our doorstep. The idea came from a conversation with the local St Austell Running Club, whose commitment, enthusiasm and passion have been invaluable in putting on the event.

The Marathon is just one of the many ways Eden aims to act as a catalyst for economic growth in the local region. If we could build this place, in a former clay pit, surely together we can all take on even bigger challenges…

You can find all sorts of practical information below – and we also have a Marathon Facebook page where you can chat to other runners.

Frequently Asked Questions

You can find all sorts of practical information below – and we also have a Marathon Facebook page where you can chat to other runners.

Eden Marathon Terms and Conditions 2026

Privacy Policy

What are the prizes?

Every runner will receive a pasty, a beer and every finisher a medal.

For the Marathon:

1st male (£300); 1st female (£300)

1st male veteran 40, 45, 50, 55, 60+

1st female veteran 40, 45, 50, 55, 60+

1st 3 male team (4 in a team)

1st 3 female team (4 in a team)

For the Half Marathon:

1st male (£250); 1st female (£250)

1st male veteran 40, 45, 50, 55, 60+

1st female veteran 40, 45, 50, 55, 60+

1st 3 male team (4 in a team)

1st 3 female team (4 in a team)