The Cardiff Half Marathon is the UK’s second largest half marathon and Wales’ largest multi-charity fundraising event. This iconic event attracts 27,000 runners each year who pass by the city’s stunning landmarks including Cardiff Castle, Cardiff Bay and Civic Centre.

By joining Team Natasha at the Cardiff Half, you will be making a vital difference. You will bring us one step closer to our mission to #MakeAllergyHistory.



Key details

  • Date: Sunday 4 October 2026

  • Location: Cardiff

  • Distance: 13.1 miles

  • Fundraising target: £350

Sign up HERE or get in touch if you have any questions at fundraise@narf.org.uk


Find out what to expect on the race by watching the highlights from the Cardiff Half 2025.