The Merthyr Half Marathon

Test your mettle on a scenic and challenging Welsh course at the Merthyr Half Marathon on Sunday, 22 March 2026. Organized by the local Merthyr Running Club, this community-focused event takes you on an undulating 21.1km journey through the historic Trevithick and Taff Trails, offering spectacular views of the surrounding valleys and countryside. Starting and finishing at Merthyr College, the route is mainly on tarmac with a small trail section, providing a varied and rewarding test for runners. With hundreds of participants each year, the race is known for its friendly atmosphere, great organization, and the warm welcome of a true club-run event. Entries are now open—secure your spot for a memorable early-season challenge in the heart of South Wales.