The Cardiff Half Marathon is back in October 2026!
Taking place on Sunday 4 October 2026, the Cardiff Half Marathon is an event not to be missed! Not only is it the UK’s second-largest half marathon, it's Wales’ largest road race and largest multi-charity fundraising event! To top it off, it's also part of the Super Halfs, Half Marathon Series so it's expected to sell out fast - sign up now to secure your place!
The route takes you past the city’s most iconic landmarks with beautiful scenery and historic buildings. The predominately flat and fast course makes it ideal for beginners and elites.
The course then heads towards the north of the city and runners will complete a loop of the beautiful Roath Park Lake before the grandstand finish in the heart of the city at the Civic Centre.
Event details
Why choose Team Marie Curie?
As part of our team you'll receive fantastic support from the moment you sign up all the way until you reach the finish line. We'll also provide you with:
- A Marie Curie running vest or T-shirt which you can wear with pride
- Iron-on letters for your name or temporary tattoos (upon request)
- Expert training guides
- On-hand support from our dedicated fundraising team
- The loudest cheers along the route
- Post race refreshments
- An online fundraising pack to help you smash those targets
Apply for a Marie Curie place
Join Team Marie Curie for one of the best half marathons in Wales!
Register for the Cardiff Half MarathonHow we support you
How the money you raise helps
£23 could pay for an hour of expert care and emotional support for someone living with a terminal illness, in the comfort of their own home.
£100 could help fund half an evening's care in a person's home when they need it most.
£200 could help fund nine hours of nursing support in someone's home through the night, bringing the expert care and comfort families need.
Apply for a Marie Curie place
Join Team Marie Curie for one of the best half marathons in Wales!
Register for the Cardiff Half Marathon