RunUK Windsor Dorney Lakeside Half Marathon 2026

RunUK’s Windsor Dorney Lakeside 10K is a traffic-free 10K at Dorney Lake near Windsor in Berkshire. The race uses the grounds of a London 2012 Olympic venue, providing runners a closed-road setting without city traffic or busy junctions. The course stays within the Dorney Lake site, with the start area near free parking and accessible by public transport and car. Local organisations and charities support the event, giving it a community race feel.