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Cardiff Half Marathon

Date:
Location:
Cardiff
Registration fees:
£25 charity registration fee
Minimum sponsorship:
£300
Woman running a race to advertise for the Cardiff Half

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The Cardiff Half 2025 is now SOLD OUT. 

Don’t worry! We still have charity places up for grabs. Apply today to make sure you don’t miss out on an epic half marathon. 


This iconic event, known as the Principality Cardiff Half Marathon, is one of Europe’s largest half marathons.

Its scenic route includes some of Wales’ most iconic landmarks, such as Cardiff Castle, the Principality Stadium, Civic Centre, and Cardiff Bay.

Whether you’re a seasoned marathon enthusiast or someone seeking the thrill of their first half marathon, this flat and fast course caters to runners of all levels.

Help us create positive change for children at Bristol Children’s Hospital and St Michael’s Neonatal Intensive Care Unit. Sign up now and let your strides make a difference!

Fun for all the family

This half marathon also offers a host of family-friendly activities, including the Cardiff Half Junior.

  • If you’ve already secured your own place, click I already have my own place‘  and fill out the form, so we can send you a fundraising pack. 
  • Set up a JustGiving or Enthuse page to kick-start your fundraising.
  • Raise as much money as you can!
  • To apply for a charity place, complete our registration form and pay a £25 registration fee (2025 charity places are now sold out).
  • Pledge to raise a minimum of £300 (excluding gift aid and any registration fee) in sponsorship money.
  • 80% of the minimum fundraising pledge (£240) must be raised six weeks prior to the Cardiff Half Marathon (24 August 2025). Failure to meet this deadline may result in your place being revoked, and you will not be entitled to a refund of your registration fee. The full minimum fundraising pledge must be raised within two weeks after the Cardiff Half Marathon (19 October 2025).
  • Set up a JustGiving or Enthuse page to kick-start your fundraising:
  • A charity running top
  • Expert advice from our dedicated fundraising team
  • Support in setting up an online fundraising page
  • Additional fundraising materials
  • Online and digital resources
  • A cheer squad to motivate you on race day

Register with us and we’ll send you our fundraising pack with tips and inspiration.

Fundraising tools:
To start fundraising:

Create your own online Enthuse or JustGiving fundraising page.

Buy your ticket on the Cardiff Half Marathon website and register with us to let us know! You will receive a branded charity top and any fundraising materials that you might need, and we will also be on hand to support you in your fundraising journey.

As you are buying your own tickets for the event, there is no minimum fundraising pledge. We would however encourage and support you to raise as much as possible, both in order to help us to cover the costs of the resources you receive but also to raise the maximum amount for Bristol Children’s Hospital or the Neonatal Intensive Care Unit.

However, if you were lucky enough to nab one of our charity places, the minimum sponsorship is £300.

Once you have registered with us, you will be shown how to set up an online giving page.

We highly recommend creating a JustGiving page or an Enthuse page to share your story, pictures, the reason for your fundraising and any training updates with friends and family.

They are simple platforms to use, for both yourself and your supporters. All donations made to your page are transferred to us automatically and it allows supporters to gift aid their donations.

You can create a page by clicking this link and selecting the ‘fundraise for us’ button. Choose ‘taking part in an event’ and search for ‘Principality Cardiff Half Marathon 2024’, it’s always good to start early!

You need to be at least 17 years old to enter.

You can find lots of information about the event on the website and also a handy FAQ too.

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