About the 2026 Cardiff Half Marathon
Do epic views and a buzzing atmosphere sound up your street? Then the Cardiff Half Marathon is the one for you!
From cultural landmarks to the city's vibrant waterfront, you’ll get to explore the capital of Wales on a route like no other.
How to enter
- Get a CALM Charity Place: There is a £20 registration fee (Plus Run for Charity's Admin fee) and a £300 fundraising target.
- Already got your own place? We'd love to have you on the Cardiff Half Marathon team, use this form to tell us about it.
How we’ll support you
Whether it’s your first time taking on the Cardiff Half Marathon or you’re back for more, we’re here to make sure you have the best time. As part of Team CALM you’ll receive:
A CALM running vest or t-shirt so you look the part
Dedicated support from the Challenge Events team
Access to the CALM Running Club Facebook group
Tips and advice to help you smash your fundraising target
Event accessibility
Cardiff Half Marathon welcomes runners of all abilities to take part. If you need assistance or want to chat through your accessibility needs, get in touch with the Cardiff Half Marathon team who will be happy to help.
Got a question?
Check out our FAQs or head to the Cardiff Half Marathon website. If you can’t find an answer there, get in touch and we’ll be happy to help.
