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Distances in this event

  1. Ultramarathon

    Run 250mi
    Event passed

From the organizer

Organizer's website

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.

Kit List

Compulsory Kit List - The following kit must be carried at all times during the race:

1 Litre of Fluids - You must have the ability to carry this as a minimum but we would advise more when shops may not be open such as late at night.

Full Waterproof cover - Thats top and Bottoms folks, must be waterproof not windproof. Its for your safety. (taped seams)

Hat or Buff - Again for insurance against cold or wet weather

Food - You must be self sufficient between checkpoints of about 25 miles apart which late in the race could take you 8+ hours to cover. You cannot rely on places to buy stuff especially at night please ensure you take enough with you - If we think you are not carrying enough we will insist you take more.

Mobile Phone - For Emergency and must have battery/charging facilities to last the full 4 days - Stay off twitter and Facebook etc unless you really know it will last and be there when you need it. If we know your phone is dead we will not let you leave a checkpoint untill it has at least 50% charge.

Head Torch - Must be worn at night and carried if its likely to get dark before you get to the next Checkpoint - If marshals tell you to take it do not argue with them, take it!

Thames Ring 250 weather forecast

Overcast throughout the day.

Predicted highs
Predicted lows
IconModerate breeze possible, up to 13mph

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