Cardiff Half Marathon 2025 Date. Llandaff cathedral,cathedral close cardiff cf5 2la. Run the cardiff half marathon, one of the uk's top races, and experience a thrilling 13.1 mile route through cardiff's stunning landmarks and vibrant streets.
Part of the coveted superhalfs series, the iconic route takes in all of the city’s most famous landmarks including cardiff bay, the civic centre and cardiff castle. Join #teamshine at the 22nd cardiff half marathon!