20k Swimrun

SEP
5
2027
A 20 km swimrun on 5 September 2027 that mixes three river swims on the Thames with three trail runs through Wytham woodlands, starting at Eynsham Lock and finishing at Wytham Chalet, with three feed stations and a finish café.
Sun 5 Sep 2027
20k Swimrun

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20K Swimrun

This event, scheduled for 5 September 2027, combines open water swimming in the River Thames with trail running through Wytham woodlands in Oxfordshire. The course starts at Eynsham Lock and finishes at the Wytham Chalet, with both river and woodland sections.

The route is made up of three swim sections and three run sections for a total distance of 20 km:

  • 3.8 km swim
  • 16.5 km run

Swim sections take place on the River Thames beginning at Eynsham Lock. Running sections follow woodland tracks and cross-country terrain in the semi-ancient Oxford University woodlands of Wytham. The event includes three feed stations supplying water and isotonic drinks; any other nutrition needs are the participant's responsibility.

Logistics include a post-swim bag system: bags must be loaded at the start and will be transported to the finish area at the chalet/café tent. Participants are advised that body temperature can continue to fall after swimming and that changing into warm clothes is compulsory. There is parking at Siemens car park (OX29 4BP). Entries are non-transferable and a refund policy applies. Race merchandise will be available at the event and a café/tent will be present at the finish. Visit the organization's website for the most recent information.

20 km
20k Swimrun
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