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2026 Oysho Cardiff Half Marathon

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.

About the Event

  • Date:  Sunday 4 October 2026
  • Location: Cardiff
  • Distance: 13.1 miles
  • Minimum fundraising: £300
  • Registration fee: £35
  • Age requirements: 17+ years old

By raising money for Stemette Futures, you’ll help us achieve our mission of engaging, informing, and connecting the next generation of women and non-binary folks in STEAM. Our vision is for young people to make informed decisions about careers in STEAM, ensuring that women and non-binary people are proportionally represented in the field.

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We’ll support you all the way

✓ A Stemette Futures running top
✓ Plenty of fundraising and training support
✓ Regular newsletters to keep you up to date
✓ Support from a dedicated member of the team

Why your support matters

✓ Only 26% of the core STEAM workforce in the UK are women - this drops to 18% in IT related roles and 11% in engineering
✓ The UK has a STEAM skills shortage - increasing the numbers of women and non-binary folk entering the workforce will help to address this