Thames Ring Series

Thames Ring Series

The Thames Ring Series is a multi distance trail event based at the Morrell Rooms, Streatley-on-Thames, RG8 9JA. It comprises three route options that follow canal and riverside paths, largely flat and mostly on towpaths and footpaths.

Distances

• 250 mile route, about 256 miles, 100 hours allowed
• 150 mile route, about 158 miles, 53 hours allowed
• 100 mile route, around 98 miles, 34 hours allowed

Routes form an anti-clockwise loop east along the Thames, up the Grand Union Canal and back via the Oxford Canal, returning to Streatley. Navigation uses supplied GPX files and printed or downloadable maps; final maps and GPX files are published close to the event. Checkpoints appear roughly every 25 miles and provide varying facilities; some indoor checkpoints have toilets and sleeping space, and sleeping tents are available after about 75 miles on the longer races.

All runners are tracked with GPS trackers that include an SOS button. Drop bag rules: 250 and 150 entrants may use one bag up to 15 kg transported to checkpoints; 100 mile runners have a single drop bag accessed at the Lower Heyford checkpoint. Outside support is permitted only at designated checkpoints and pacers are not allowed. Compulsory kit includes at least 1 litre of fluids, full waterproof top and bottoms, hat or buff, sufficient food, a charged mobile phone and a head torch of minimum 100 lumens. Entries close 1 April 2027 and entrants must be 18 or over. Visit the organization's website for the most recent information.