Run Cardiff Half Marathon for charity

Challenge yourself by taking part in Wales’s largest road race and the UK’s second-largest half marathon. Your charity run can raise money for Sightsavers and change lives around the world.

Register to run for Sightsavers in 2025!
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Runners pass by the Wales Millennium Centre on the way to the Cardiff Half Marathon finish line.

This half marathon route is flat and fast, making it ideal for beginners and those chasing that personal best.

The course takes you past some of the city’s spectacular scenery and iconic landmarks, including Cardiff Castle, the Principality Stadium, Cardiff Civic Centre and the stunning Cardiff Bay.

You can also expect huge crowd support, with thousands of spectators turning out to cheer on runners.

You’ll need to be quick if you want to secure your place in this popular event. General entries for the 2025 Cardiff Half Marathon sold out at record speed, which means charity places are one of the few ways you can still take part.

Event information

When: Sunday 5 October 2025
Where: Cardiff, UK
Registration fee: £31.20
Fundraising target: £300

How to register

You can sign up to run for Sightsavers by completing the online registration form on the Run for Charity website. The entry fee is £31.20, and we ask runners to raise £300 for our vital charity work.

We’re here to support you with your fundraising and help you to smash your target. Visit our fundraising page for ideas or email [email protected].

Your run, your impact

The £300 you raise could pay for three cataract operations for children at risk of sight loss.

Got your own place?

If you’ve already signed up for this event, you can still fundraise for us. Before you become a Sightsavers fundraiser, you need to have confirmed your place with the race organiser. This means registering directly and paying your registration fee.

Already registered and paid your fees? Please email us on [email protected] or call 01444 446 600 to tell us.

Any fundraising questions? Drop us a line!

Group of people wearing Sightsavers yellow t-shirts.

Please do get in touch with any queries. We’d love to hear from you!

Email [email protected]

For answers to some of the most common queries, see our frequently asked questions.

Start your fundraising journey with us

Fundraise for Sightsavers