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Runner at the Eden Marathon

Eden Marathon and Half Marathon

Cornwall’s biggest running event, the Eden Marathon and Half Marathon returns on Sunday 10 October 2021, with a multi-terrain route through spectacular countryside. 

Entries for this year's Marathon and Half Marathon are now closed. 

Well done 2021 runners!

We hope you enjoyed the Eden Marathon and Half Marathon this year. 

We'll be in touch with all runners soon, but in the meantime, you can review all the results below.

Full results

See the overall results for the Marathon, and the Half Marathon.

See the category and team breakdown results below:

See the results on RunPix

Next year's Eden Marathon and Half Marathon will be held on Sunday 16 October, with entries opening in the next few weeks. 

About the Eden Marathon

Marathon logo 2021

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.

Please check our FAQs page regularly for the latest information relating to the pandemic, as we will be updating in line with government guidelines.


Fantastic scenery, great organisation, where else do you get a pint and a pasty!


“Fantastic scenery, great organisation, where else do you get a pint and a pasty!”

Race features

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

  • Technical t-shirt, pasty and a beer for all race runners – where else but Cornwall?
  • Themed medal for all race finishers
  • 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

A great, challenging course with excellent scenery.


“A great, challenging course with excellent scenery.”


Registration for the 2021 Marathon and Half Marathon is now closed for 2021.

  Affiliated Non-affiliated
Half Marathon £30 £32
Marathon £35 £37

Find out about the automatic transfer of places from the postponed 2020 Marathon to the 2021 Marathon


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…

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.

Route and terrain

Bookings and registration

Preparing for the day

On the day

After the day