Thames Trail Ultra

OCT
24
2026
Take on the Thames Trail Ultra: a scenic point to point 47 mile run from Iffley to Henley along the Thames Path and Ridgeway, mixing towpaths and country trails. Well supported with checkpoints and live tracking.
Sat 24 Oct 2026
47 miles

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Event overview

The Thames Trail Ultra is a point-to-point ultra marathon of approximately 47 miles running from Hawkwell House Hotel in Iffley, Oxfordshire, to the YMCA Y Centre in Henley-on-Thames. The route follows the Thames Path and the Ridgeway National Trails and passes riverside paths, towpath tarmac, country trails and some roads. The organiser reports an elevation gain of +947 ft (+289 m) and an elevation loss of -1053 ft (-321 m). The event is registered as a UTMB Index race in the 50K category.

Course, support and logistics

The course is waymarked and supported by electronic tracking. The organiser provides a Geo Tracks GPS tracker for real-time tracking. The tracker uploads every 10 seconds, is accurate to about 5 metres and has a battery life of about 70 hours. There are five checkpoints with water, snacks and fruitcake; toilets are available near checkpoints 1, 4 and 5. The cut-off for the race is 11.5 hours, with progressive cut-offs from checkpoint 3 onward. One competitor bag will be transferred from the start to the finish; maximum bag size is 56 x 45 x 25 cm. Entry is restricted to competitors aged over 18. Runners are required to carry mandatory equipment, which includes a fully charged mobile phone, power bank, minimum 1 L water container, survival blanket, waterproof jacket, whistle, headtorch or body torch with spare batteries, hat and gloves, a long-sleeved base layer or fleece top, and a debit or credit card. Visit the organization's website for the most recent information.

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