River Thames Half Marathon
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River Thames Half Marathon 2026
The River Thames Half Marathon takes place on 25 October 2026 in Walton-on-Thames and Weybridge, Surrey. The event is now in its sixth year and uses a flat towpath route that follows the non tidal River Thames from Walton-on-Thames to Hampton Court Bridge, with the start and finish at Walton Bridge.
Organisers describe the course as largely traffic free and suitable for runners aiming for a personal best or completing their first half marathon. The event features chip timing and free race photos, and runners can download a personalised race certificate with their finish time after the event. The race is held under Run England race licence rules.
Participants receive a bespoke medal and a well stocked goody bag. Marshals are described as enthusiastic and friendly, and the organisation is described as efficient. Entry is listed from £34 including the registration fee at the time of writing. The event is presented as a warm up race for late autumn marathons such as New York, Valencia and Florence. Visit the organization's website for the most recent information.
