Thames Trail Ultra
Oxford, United Kingdom • 25 Oct 2025
The Thames Trail Ultra is a challenging 47-mile point-to-point ultra marathon that runs along the scenic Thames River from Iffley in Oxfordshire to Henley-on-Thames. This popular event, previously known as the Thames Trot, features a diverse course that includes tarmac paths, muddy trails, and picturesque views of traditional rowing clubs and beautiful houses. Participants can expect well-marked routes and support from volunteers, with checkpoints offering refreshments. The race is recognized as a UTMB index race, making it a notable event in the ultra running calendar. Runners will enjoy amenities at the finish line, including showers and hot food. Visit the organization's website for the most recent information.