Chepstow Running Festival August 2026

The Chepstow Running Festival takes place at Chepstow Racecourse in South Wales, offering 5K, 10K, and half marathon distances. This event is RunThrough’s sole fixture in Wales. The racecourse is located conveniently close to Bristol and Cardiff, with its postcode listed as NP16 6BE. All races are set within the racecourse grounds. Each mile is clearly marked, and marshals are stationed along the route to guide participants and encourage them towards the finish line. Chepstow Racecourse, established in the early 1920s, is also the venue for the Welsh Grand National, meaning participants will run on a course famous for a major event in Welsh horse racing.