Home→Get involved→Fundraising events→Cardiff Half Marathon 2026

About the event

The Oysho Cardiff Half Marathon has grown into one of the largest and most exciting road races in Europe – and 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. 

 📅 When: 4 October 2026
📍 Where: Cardiff
🏃‍➡️ Distance: 13.1 miles
🪙 Registration: £35
🧡 Fundraising pledge: £350

*You must be 17 years + of age on the event date to run in this event. 

Supporting you

We know that fundraising can be just as challenging as the event, but we’re here to support you every step of the way. Join our team and you’ll receive the very best support from us to ensure your challenge and fundraising journey is enjoyable and a success, including:

  • A complimentary Anaphylaxis UK technical running vest or t-shirt
  • Our Fundraising Pack with tips and advice on how to reach your fundraising target
  • Regular email check-ins and the latest news about the event and Anaphylaxis UK

Supporting us

The money you raise for Anaphylaxis UK will do so much for someone at risk from a serious allergic reaction and anaphylaxis…

£120 raised...

could pay for a healthcare professional to complete our AllergyWise®️ training course to ensure staff working in a community setting recognise the signs of anaphylaxis and know how to confidently respond to a reaction.

£300 raised...

could help develop much-needed resources to reduce allergy-related anxiety and equip people with tools they may need to cope with living with allergies. A positive release of accessible information via digital guides, infographics, bitesize podcasts and videos.

£500 raised...

could help us grow our Support Group network to strengthen local support for individuals and families living with serious allergies. This exciting new initiative will create a safe, inclusive space where people affected by serious allergies can come together, share experiences, and support one another.

£900 raised...

could pay for 3 face-to-face visits to education settings from our Education & AllergyWise®️ Manager, Tracey Dunn. Tracey has 15+ years experience as a qualified teacher and mum to children with allergies, and shares her expertise with schools to improve their allergy management.

Got your own place?

Let us know!