Thames Ring 250

Thames Ring 250

Wednesday, 21 April 2027 to Sunday, 25 April 2027

Streatley-on-Thames, Reading, UK

Follow event Run/Walk Road/Path/Park Off Road/Trail Multi Day / Stage Race Self-Navigation

The Thames Ring Series from 21 to 25 April 2027 includes the iconic Thames Ring 250 mile trail race based from Streatley-on-Thames.

The course follows an anti-clockwise loop East along the Thames, up the Grand Union Canal and back to the Thames via the Oxford canal. The route is relatively flat and almost entirely on canal and riverside paths. Terrain is mainly rural towpaths and footpaths, with some stretches of urban areas.

Runners have 100 hours (4 days 4 hours) to complete the run, navigating using maps, gpx files and being supported by checkpoints every 25 miles or so.

As well as the full distance, there is also a 150 mile and 100 mile option.

Please refer to the event website for full details of course information and cut offs.

Organiser

Challenge Running

Distances/Events

Starting Wednesday:
Multi day race: 250 miles
150 miles

Starting Friday:
100 miles

Location map

The Race HQ is the Morrell Rooms, Goring / Streatley. Refer to the event website for course map.

Please note: the map location may be approximate. Refer to the event website for start lines and course maps.

Disclaimer

Running Calendar is an event listing site created as a resource for runners/walkers/athletes. We have no affiliation with the events listed, nor do we endorse or recommend them.

Listings are based on information found on the official event website, facebook page and/or from event directors.

We endeavour to keep these as up-to-date as possible, however we accept no responsibility or liability for any errors/omissions in the content of this site or that of any third party links provided in our listings. Information can be subject to change without notice.

Always check with the official event website and/or facebook page for the most recent information. 

This listing was last manually checked on 26 April 2026.

Nearby Events

More nearby events