Cardiff Half Marathon

Cardiff Half Marathon

Sunday, 5 October 2025

Cardiff City Centre, Wales, UK

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The iconic Cardiff Half Marathon is back on 5 October 2025 with its flat, fast, road course around Wales' capital city.

The course passes all of the city’s most breathtaking scenery and iconic landmarks including Cardiff Castle, the Principality Stadium, Civic Centre and stunning Cardiff Bay.

This event is the UK’s second largest half marathon and Wales’ largest multi-charity fundraising event.

Organiser

Run 4 Wales

Distances/Events

Half Marathon

Location map

The race starts outside Cardiff Castle and finishes in the heart of the city at the Civic Centre. The event village is at the City Hall Lawns.

Please note: the map location may be approximate. Refer to the event website for start lines and course maps.

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This listing was last manually checked on 16 April 2025.

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