Now!
Sunday 7 September 2025
The Brecon Carreg CDF 10K gives thousands of runners the opportunity to take to the streets in the heart of the Welsh capital. This iconic and historic event had been added to Run 4 Wales (R4W)’s portfolio of world-class mass participation events, and is set to become one of the UK’s largest distance events.
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Kilometre Race
Organised by Run 4 Wales (R4W)
The Brecon Carreg CDF 10K is now operated by R4W, a not-for-profit social enterprise that works in partnership with London Marathon Events (LME).
Its portfolio of major sporting events includes the iconic Cardiff Half Marathon, ABP Newport Marathon Festival, Brecon Carreg Cardiff Bay 10K, Porthcawl 10K and Dell Technologies Management Challenge.
Check out a full calendar of events, and find your next challenge!
Run for Lead Charity Kidney Wales!
Run for #TeamKW and help raise vital funds for those living with chronic kidney disease in Wales.
Those opting to raise money for Kidney Wales can enter for just £1, when pledging to raise £125.
News
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Man to take on Brecon Carreg CDF 10K in wetsuit in memory of best friend
A father-of-four from Caerphilly will be donning his wetsuit to run the Brecon Carreg CDF 10K in memory of his
Man’s 10K challenge to thank mum for kidney
A lorry driver from Swansea will be taking on the Brecon Carreg CDF 10K to thank his mum for donating
Bridgend Ford leads the way for the Run 4 Wales 10K Series 2026
Bridgend Ford will continue to lead the way in Run 4 Wales’ series of 10K races for 2026. The car
Brecon Carreg CDF 10K Sells Out!
General entries into this year’s Brecon Carreg CDF 10K have now sold out with one month to go until race
Only 500 spaces left in Brecon Carreg CDF 10K
There are just 500 spaces left to take part in the 2025 Brecon Carreg CDF 10K. Runners who want to
Team of Children’s Kidney Unit nurses take on Brecon Carreg CDF 10K for Kidney Wales
A team of six nurses who work in the Children’s Kidney Unit at the Noah’s Ark Children’s Hospital in Wales
ROUTE
ROUTE
The Brecon Carreg CDF 10K takes runners on a sightseeing tour of the city, with highlights including Cardiff Castle and the Principality Stadium. The race journeys through the heart of central Cardiff, before crossing the River Taff and heading towards the leafy suburb of Pontcanna and the grade 2 listed parkland of Llandaff and Pontcanna Fields. Runners will then pass Sophia Gardens, the home of Welsh cricket, before a grandstand finish in the Edwardian Civic Centre.
GALLERY
GALLERY
BUSINESS CHALLENGE
The Scimitar Business Challenge is a fantastic opportunity for teams to compete to win prizes whilst taking advantage of additional event experience benefits.
UP TO
40
CHALLENGE TEAMS
UP TO
300
CHALLENGE RUNNERS
PARTNERS
