Thames Trail Ultra

OCT
24
2026
A 47-mile point-to-point ultra along the Thames Path from Iffley to Henley-on-Thames. The course mixes riverside trails with road sections and is a UTMB index race. Support includes five aid stations, GPS tracking, and a baggage transfer.
Sat 24 Oct 2026
47 miles

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Course

The Thames Trail Ultra is a point-to-point ultra-marathon covering a distance of 47 miles (approximately 76 km). The route starts at Hawkwell House Hotel in Iffley, near Oxford, and follows the Thames Path and sections of the Ridgeway National Trail to finish at the YMCA Y Centre in Henley-on-Thames. The terrain is a mix of 86% cross-country trails and riverside paths, and 14% road. There is an elevation gain of +947 ft (+289m) and a loss of -1053 ft (-321m).

Event Information

The race has five aid stations along the course, providing water, snacks, fruitcake, and energy bars. There is a final cut-off time of 11.5 hours. Participants must carry mandatory kit, including a waterproof jacket, survival blanket, headtorch, and mobile phone, which may be subject to random checks.

A baggage transfer service is offered from the start to the finish line, with a recommended bag size of 56 x 45 x 25 cm. GPS trackers are provided for real-time race tracking. The event is part of the UTMB Index System for the 50K category. Trophies are awarded for the top three male and female finishers, and all finishers receive a medal.

Venue & Travel

The start line is located at Hawkwell House Hotel in Iffley, Oxford. Limited on-street parking is available nearby. A courtesy shuttle bus runs from Oxford train station to the start. For the return journey, Twyford station is one stop from Henley-on-Thames. Visit the organization's website for the most recent information.

47 mi
47 Miles (iffley to Henley-on-Thames)