Run Dorney Lake Marathon

APR

4

2026

RunThrough invites you to Dorney Lake near Windsor for a flat, scenic half marathon, 10k or 5k around the iconic rowing lake. Entries include a unique medal, free photos, chip timed results and a lively event village.

Sat 4 Apr 2026

Windsor, South East (England)

Registration

Half Marathon 10 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

RunThrough UK stages the Run Dorney Lake Half Marathon, 10k & 5k on Saturday 4 April 2026 at Dorney Lake, Windsor, Berks. The venue is a purpose-built rowing lake that hosted London 2012 rowing events. The organiser describes sustainability as a growing priority for its events.

Race distances and route

Half Marathon - Elevation 27m; Laps: 4 + U-turn each lap; Terrain: Road.
10K - Elevation 15m; Laps: 2; Terrain: Road.
5K - Elevation 8m; Lap: 1; Terrain: Road.

Each kilometre is marked with distance flags and marshals are positioned around the course.

Included with entry and event facilities

Entries include a unique themed medal, free race photos, chip-timed results and post-race goodies. The event village offers food and drink options and free partner-provided items at the finish. An event t-shirt is available at a discount when purchased as part of the entry through the organiser’s kit partner. Visit the organization's website for the most recent information.