Cardiff Half Marathon 2025
Join #TeamSamaritans for a flat and fast half marathon in the Welsh capital.
How Samaritans will support you
- Regular email updates and support from the Samaritans Events Team
- Receive awareness-raising and fundraising materials
- Your own personalised running vest/t-shirt to wear with pride on the day
- Supporter t-shirts and cheering materials
Why Samaritans need your support
We know that life can sometimes be incredibly tough. Thanks to the dedication of more than 20,000 volunteers, Samaritans can be there for anyone, whatever they are going through and whenever they are struggling to cope. We’re also at the heart of local communities, working with schools, workplaces, railways, prisons and hospitals to offer training and support, preventing suicide and helping people turn their lives around.
Our life-saving work wouldn’t be possible without the extraordinary generosity of our event participants.
More information
Our Samaritans charity place applications are now open. Please click on the 'apply for a charity place' button below to apply for a place today! We'd love to welcome you to #TeamSamaritans!
Please note, in order to receive the console registration link to confirm your place with the event organisers, you will need to have received your first donation on your online fundraising page.
Got a question about this event? Contact our Events Team at community&[email protected] and we'll respond as soon as we can.
About Cardiff Half Marathon
From the event organisers: "The Principality Building Society Cardiff Half Marathon has grown into one of the largest and most exciting road races in the United Kingdom. It is now one of Europe’s largest half marathons and is Wales’ largest mass participation and multi-charity fundraising event.
Its flat, fast 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."
For more information, please click here to visit the official Cardiff Half Marathon website.
Incredible support from start to finish!
Team Samaritans Participant
Thank you for your interest. All of our charity places for the Cardiff Half Marathon have now been filled. We are still taking applications for the Bath Half Marathon 2026, taking place on Sunday 15th March 2026, and would love to hear from you. Please click below to find out more and apply.