Run Dorney Lake Marathon, Half Marathon, 10k & 5k - September

Get ready to lace up your running shoes for the Run Dorney Lake Marathon, Half Marathon, 10k & 5k on Saturday, September 26, 2026! Organized by Dorney Lake Events, this exciting race day promises an unforgettable experience set against the stunning backdrop of Dorney Lake in Windsor, Berkshire. Known for hosting the London 2012 Olympic rowing events, this picturesque venue offers a flat, chip-timed course that’s perfect for runners looking to achieve personal bests. Participants can choose from a variety of distances, including the Half Marathon, 10k, and 5k, with all races kicking off at 9:10 am. Whether you're aiming to conquer the half marathon with its four laps and a modest elevation of 27m, or sprint through the scenic 5k route with just one lap, this event caters to all abilities. Join us for a day filled with camaraderie, competition, and a vibrant atmosphere as you take on the challenge at this beautiful lakeside location. Don’t miss out on this fantastic opportunity to run at Dorney Lake!

Join us for the Run Dorney Lake Half Marathon, 10k & 5k on Saturday 26th September 2026 Join us for a 5k, 10k or Half Marathon distance at the home of London 2012′s Olympic rowing events. Dorney Lake is situated near the village of Dorney in Buckinghamshire, is a purpose-built rowing lake with grounds that are a perfect backdrop to running as well as rowing. The flat course is ideal for a chip-timed personal best over the 5k or 10k distance. Race Distance & Start Times: 09:10 am - All Distances 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 Race End: We have a 4 hour cut in place for our marathon distance.