riverthamesrunning.co.uk

River Thames Half Marathon

Name: River Thames Half Marathon
Start: 2026-10-25
End: 2026-10-25
Location: Walton-on-Thames, London

location_on

Walton-on-Thames, London, United Kingdom

calendar_today 25 Oct, 2026

language Official Website

About the Event

Achieve your personal best on a runner-friendly course at the River Thames Half Marathon on October 25, 2026. Starting at Walton Bridge, this largely traffic-free route follows the serene Thames towpath, offering a flat and fast multi-terrain experience that's perfect for PBs and first-timers alike. With enthusiastic marshals, dedicated pacers, and a fantastic finisher's mug, the event combines top-tier organization with a warm, community spirit for an unforgettable racing experience.

Races Offered

River Thames Half Marathon

Oct 25, 2026

straighten

Distance — 21.1K

terrain

Type — —

timer

08:30

Weather Overview

These values represent the 3-year monthly averages for October in Walton-on-Thames.

Temp (°C)

Feels Like (°C)

thermostat 9.9° / 16.7°

wb_sunny 7.2° / 14.1°

Wind (km/h)

Humidity (%)

air 14.5 /

water_drop 83.9%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 9.9° / 16.7°

wb_sunny 7.2° / 14.1°

air 14.5 km/h

water_drop 83.9%

About Walton-on-Thames

Walton-on-Thames, known locally as Walton, is a market town on the south bank of the Thames in northwest Surrey, England. It is in the Borough of Elmbridge, about 15 mi (24 km) southwest of central London. Walton forms part of the Greater London Built-up Area, and is served by a wide range of transport links. According to the 2011 Census, the town has a total population of 22,834. The town itself consists mostly of suburban streets, with a historic town centre of Celtic origin. It is one of the largest towns in Elmbridge, alongside Weybridge.