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Fundraising Events

Cardiff Half Marathon

Sunday 5 October 2025
This event is open to own place participants only. 

I have my own place
I have my own place

The Cardiff Half Marathon is one of Europe’s largest half marathons and is Wales’ largest mass participation event. Take part in this charity event and run past the city’s most breath-taking scenery and iconic landmarks including Cardiff Castle, the Principality Stadium, Civic Centre and stunning Cardiff Bay.

There are 2 entry options for Cardiff Half Marathon.

How to enter

Charity places

Our Charity places for 2025 are now sold out.   

Own place entry

If you’ve already got a place for Cardiff Half Marathon, you can still sign up to run and fundraise for BHF. There’s no entry fee and no fundraising goal. You'll still receive all the same benefits and support as a charity place runner.

  • No registration fee
  • No fundraising target - raise as much as you can

I have my own place

5 October 2025
Cardiff
Free
13.1 miles / 21.1 km
I have my own place

You'll get support from BHF to get you to the finish line.

Your entry includes:

  • a BHF running top or vest
  • free training plans and support
  • a fundraising guide with information and tips
  • regular support from BHF 
  • access to our Team BHF Facebook group.

The easiest way to start fundraising is by setting up a JustGiving page.

You can share your page with friends and family and on social media.

We also have a wealth of fundraising resources for you. You can:

You might be an experienced runner, or this might be your first official race. Either way we’d recommend some training before taking on this kind of run.

In order to help you reach the finish line, we've put together some top tips on nutrition and some running training schedules.

Learn about nutrition for sport

See our running training plans

Contact us

Our customer care team is available from Monday to Friday from 9am to 5pm.

If you have a question you can reach them on:

Tel: 0300 330 3322

WhatsApp: 07581016513

Email: [email protected]

To find out more, or to support British Heart Foundation’s work, please visit www.bhf.org.uk. You can speak to one of our cardiac nurses by calling our helpline on 0808 802 1234 (freephone), Monday to Friday, 9am to 5pm. For general customer service enquiries, please call 0300 330 3322, Monday to Friday, 9am to 5pm.

British Heart Foundation is a registered Charity No. 225971. Registered as a Company limited by guarantee in England & Wales No. 699547. Registered office at Greater London House, 180 Hampstead Road, London NW1 7AW. Registered as a Charity in Scotland No. SC039426