Oysho Cardiff half marathon

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Run for STAMMA at Wales' largest mass-participation fundraising event and the second largest half marathon in the UK.

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

Event: Oysho Cardiff Half Marathon (ages 17+)
Location: Outside Cardiff Castle
Date: Sunday 4th October 2026

Thousands of spectators turn out to cheer on the runners in a city renowned for its sporting passion.

Any questions? Email us at fundraising@stamma.org