Get involved Fundraise for us Cardiff Half Marathon 2026 Cardiff Half Marathon 2026 If you've been unsuccessful in the Cardiff Half ballot, we have guaranteed spaces in this iconic event. 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. How we can support you We'll be here with you all the way! As a BTF fundraiser, we'll help you to set up a fundraising page on our secure platform. We'll also send you a BTF running vest or T-shirt once you have raised £50 towards your overall fundraising goal, and lots of tips on how to boost your fundraising. And we can help you promote your fundraiser on social media. The difference you will be making Register for your place Registration fee is just £35.00 with a minimum fundraising target of £350.00 Now sold out - enquire for next year Already got your own place? Awesome! We’d love you to join Team BTF! There’s no registration fee or minimum sponsorship. Just raise what you can! We'd also love to send you a free running vest or T-shirt once you have raised £50 towards your overall fundraising goal*, as well as details of how we can support you. Please get in touch *If you are doing this challenge as a group, we will supply free tops for up to two participants once you have raised £50 towards your overall fundraising goal. If you are doing a running event, please order a vest. Our T-shirts are heavy cotton and are not suitable for running in. Additional BTF tops can be purchased from our online shop Manage Cookie Preferences Please ensure Javascript is enabled for purposes of website accessibility