Cardiff Half Marathon 2025

When: Sunday 5th October 2025
Where: Cardiff
Registration fee: £20
Minimum sponsorship target: £300

Get your placeAlready got your place for 2025?

The Race

Sign up to run 13.1 miles around Wales’ capital city.

Passing all the city’s breathtaking scenery and iconic landmarks including Cardiff Castle, the Principality Stadium, Civic Centre, and stunning Cardiff Bay.

The difference you make

By taking on the 13.1 miles, you’ll be supporting more people like Leona, who called the Epilepsy Action Helpline when her son was recently diagnosed.

“During the initial stages of testing for epilepsy, Epilepsy Action were a huge help. I spoke to their helpline advisers a lot. Not only did they help me better understand epilepsy, but they always offered a sympathetic ear. The work they do is incredible and I don’t know how we would have coped without them.”

Our support

From the moment you sign up, we’re here with you all the way.

As part of the Cardiff Half Marathon team, you’ll receive:

  • Lots of fundraising advice and support from our experienced Events team
  • Regular team e-newsletter updates
  • Sponsorship forms and a handy fundraising guide
  • A branded running top
  • Cheer packs for friends and family

Get your place

Already secured your own place?

Great! We’d love for you to join the team. There’s no registration fee or minimum sponsorship.

Already have a place?

Have a question?

We’d love to hear from you.

Contact our Events team on 0113 210 8830 or email events@epilepsy.org.uk and we’d be happy to help.

Ready to register?