Padlock

Cardiff Half Marathon registration form

Sorry, registration for this event closed on 10/5/2025

Go back to all events

Donate today to help people with cancer live life as fully as they can.

  • Guaranteed safe payments

    Payment cards Visa, Visa Debit, Maestro, MasterCard, MasterCard SecureCode Verified by Visa Payment cards Visa, Visa Debit, Maestro, MasterCard, MasterCard SecureCode Verified by Visa

About this site

Macmillan sites

Get in touch

If you have any questions about Macmillan, or would like to talk to someone about cancer, we have a team of experts who can help.

Contact us

Follow us

© Macmillan Cancer Support 2025

© Macmillan Cancer Support, registered charity in England and Wales (261017), Scotland (SC039907) and the Isle of Man (604). Also operating in Northern Ireland. A company limited by guarantee, registered in England and Wales company number 2400969. Isle of Man company number 4694F. Registered office: 3rd Floor, Bronze Building, The Forge, 105 Sumner Street, London, SE1 9HZ. VAT no: 668265007