Thames Trail Ultra

Oxfordshire, Oxfordshire, United Kingdom
25 Oct, 2025 (Sat)
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Official registration partner of Thames Trail Ultra

About the event

Experience the ultimate running challenge at the Thames Trail Ultra Marathon, an exhilarating journey along the picturesque Thames River, stretching from the historic city of Oxford to the rowing haven of Henley. As you traverse this well-marked course, marvel at the dynamic scenery that includes stunning houses and traditional rowing clubhouses. This spectacular race offers a diverse terrain, ranging from tarmac paths to muddy trails, utilizing the banks and towpaths of England's largest river, as well as specially created footpaths and bridleways to keep participants captivated and challenged. With well-stocked feed stations and an abundance of enthusiastic support, this event promises an unforgettable adventure. The race kicks off just a short distance south of Oxford, beginning with a quick warm-up run to Iffley Lock, before crossing the river and continuing south along the towpath. Conclude your journey in Henley, conveniently close to the railway station for easy transport options. As an index race for the UTMB, the Thames Trail Ultra Marathon is a must for avid runners seeking an exceptional challenge.

Races offered by this event

You have 7 weeks to prepare

Course details

Course highlights

The course follows a waymarked route but requires some navigation. We provide an electronic tracker, voice navigation and various resources to keep you on track. The course is covered by OS Maps 180, 170 and 171

Start address

Church Way, Iffley, Iffley village, Oxford OX4 4DZ, UK

Finish address

Lawson Road, Henley-on-Thames RG9 1NZ, UK

Route map

route map

What’s included in entry

These are included in your entry
Parking
Finisher medal
Go Beyond Merch
Drink Stations
Bag drop
Timing chip (single use)
Toilets
Shower
Shuttle to Start Line
Nutrition Stations
Changing rooms

Frequently Asked Questions

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