The marathon is a single continuous loop that starts and finishes in Swansea, with Swansea Bay as its coastal backdrop. It is UKA licensed and AIMS certified, counts as a World Marathon Majors qualifier, and has hydration and energy stations along the course. A half marathon is offered alongside it. The organiser publishes the route map on its route page, so check there for the current course before you plan your pacing.
Map © Mapbox © OpenStreetMap.
The Running Algorithm isn't affiliated with this race's organiser. Check the official site for the latest details.
Course
The map above marks the start. The organiser publishes the full route.
See the official course mapTypical weather
Historical averages for this place and date.
Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.
What could you run here?
Get a predicted time for this course from a recent race result.