Railway Run & Formula One

The Railway Run & Formula One event, held on July 18th and 19th, 2026, takes place at Caldecotte Lake in Milton Keynes, UK. Participants can choose between marathon and half marathon distances, with marathons consisting of 7½ scenic laps around the lake and half marathons covering 3½ laps. The courses are clockwise and offer a picturesque lakeside setting.

The event features a strict time limit of 7 hours for marathons and 4 hours for half marathons. Runners receive unique bespoke medals, and race support includes water stations, toilets, and a large pub car park. The event is organized under 100 Marathon Club rules, emphasizing safety and fair competition. Visit the organization's website for the most recent information.