Thames Trail Ultra
Oxford, United Kingdom • 25 Oct 2025
The Thames Trail Ultra is a challenging 47-mile point-to-point ultra-marathon along England’s longest river, the Thames. Starting near Oxford in Iffley and finishing in Henley-on-Thames, the course follows the scenic Thames Path and Ridgeway National Trails, featuring a mix of cross-country trails, riverside paths, and some road sections. Runners experience varied terrain, including tarmac and muddy trails, with picturesque views of villages, historic houses, and rowing clubs. The event is a UTMB index race, offering aid stations with snacks and hydration, real-time GPS tracking, and a new finish line at the YMCA Y Centre with showers and hot food. It is well-supported and popular among ultra-runners. Visit the organization's website for the most recent information.