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Principality Cardiff Half Marathon
The 21st edition of the Principality Cardiff Half Marathon will take place on 6 October in 2024. Demand is at unprecedented levels after the success of our bumper 20th-anniversary edition in 2023 and a big increase in demand from overseas runners. The iconic half marathon race takes runners on an unforgettable tour of the Welsh capital, including landmarks such as the Cardiff Castle, Cardiff Bay Barrage, Wales Millennium Centre, Norwegian Church and Roath Park.