Radyr Trail Races: Half Marathon and Marathon

Radyr Trail Races in Cardiff offer a challenging half marathon and marathon on scenic trails, featuring marked routes, checkpoints and festival-linked fundraising for local charities.

Radyr Trail Races: Half Marathon and Marathon start in Cardiff and quickly move onto countryside trails and scenery, offering a half marathon for trail newcomers and a tougher marathon with significant climbing.

• Date: Saturday 9 May 2026
• Location: Cardiff Harlequins RFC, Cardiff
• Races: Half Marathon and Marathon
• Half Marathon start: 09:00 (Age 17+)
• Marathon start: 08:00 (Age 18+)
• Terrain: Trail running with mountain views, woodland and countryside paths
• Notes: The marathon requires self-navigation (with marshals at key junctions); GPX/map is provided

This event is linked to the Radyr and Morganstown Festival, with proceeds supporting local charities. The route is described as challenging but supportive, with checkpoints and sweepers to help participants around the course.