Run Dorney Lake Half Marathon - November 2026

The Run Dorney Lake Half Marathon is a flat road race held at Dorney Lake, near Windsor. It takes place in early November at the same venue that hosted Olympic rowing and canoe sprint events. The event includes 5 km, 10 km, and half marathon races, attracting both those seeking a fast short race and runners competing in the 21.1 km distance. The course consists of smooth tarmac laps around the lake's perimeter. Runners will see open water, ponds, and parkland nearby for much of the run. Dorney Lake, known as Eton Dorney during the London Olympics, was the site of 30 Olympic events where Team GB secured 12 medals. All finishers get a Dorney Lake medal, snacks and drinks at the finish, and an option for a podium photo. Results are typically available within hours.