Dorney Lake Marathon

9 August 2025

Start Time : 9:10 a.m.
Number of Places : 600

Dorney Lake Marathon

The Dorney Lake Marathon is organised by the team at RunThrough. It is part of a day of running that also includes a half marathon, 10K and a 5K.



Dorney Lake Marathon Route
Runners follow a multiple-lap course around the impressive Dorney Lake in Windsor. Organisers describe the course as a " pancake flat route on tarmac paths", which should help anyone chasing a personal best.

Dorney Lake Marathon Entry
* Entry Fee : £40
* Registration Deadline : When the race is full.

Contact Information
Contact : Race Director
Email : info@runthrough.co.uk
Website : https://www.dorneylakeevents.com