The Great Brook Run is an annual mile-long cross country run which this year takes place on 28 December in Chadlington, Oxfordshire, England. It is a fun run event and all proceeds go to local charity, the Oxfordshire Association for the Blind. The course, which starts and finishes at the Tite Inn, is wet and muddy as it traces a path along the Coldron Brook (a stream in the village) and passes through a 3-foot tunnel under a bridge.