Teenage Cancer Trust•

Cardiff Half Marathon

Date: 05th Oct 2025

Minimum Age: 17

CF10 3RB

The Cardiff Half Marathon has grown into one of the largest and most exciting road races in Europe. It is Wales’ largest mass-participation and multi-charity fundraising event and the second largest half in the UK. Its flat, fast course passes all the city’s most breath-taking scenery and iconic landmarks including Cardiff Castle, the Principality Stadium, Civic Centre and stunning Cardiff Bay. Thousands of spectators turn out to cheer on the runners in a city renowned for its sporting passion.

Play Video
Cardiff Half Marathon

When you choose to take on a challenge for Teenage Cancer Trust you’ll be doing something amazing and powerful. You’ll be helping to create world class cancer services for young people in the UK, providing life-changing care and support so young people don't have to face cancer alone. 
Read More

Register for Cardiff Half Marathon

You will be charged £114.40 (£110.00 + Booking Fee) for your place.

Full Name *

Email Address *

Contact Number *

Post Code *

Date of Birth *

Gender *

Credit/Debit Cardholder Name *

Credit/Debit Card Details *

Total Cost

You will be charged £114.40 (£110.00 + Booking Fee) for your place
Only click on the Register button once.
Do not exit this page until the transaction completes OR you are redirected to another page.