Thames Ring 250

The Thames Ring 250 is a 250mile trail race starting in Streatley-on-Thames and following the route on the map in an anti-clockwise direction. The route is mainly on canal and riverside paths and relatively flat. Runners have 100 hours (4 days 4 hours) to complete the run, navigating using maps and being supported by checkpoints every 25 miles or so. Its an extremely tough run testing runners endurance to the limit along with long hours with little sleep and long dark nights.