Saturn Running - Egham

AUG
21
2026
A flexible seven hour timed run along the River Thames. Choose your own distance from 3 km to an ultra, with themed medals and goody bags for all finishers. Enjoy a fully signed course suitable for road shoes.
Fri 21 Aug 2026
50 kilometers Marathon Half Marathon

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Event overview

This is a timed running challenge with a flexible start time between 7:30 AM and 3:30 PM. Participants have seven hours to run as many laps as they wish. The minimum distance to be an official finisher is 3 km.

Course and location

The route is along the River Thames. The path is well-made and mainly tarmac, with a very short grass section. Road shoes are suitable. The course is fully signed, requiring no navigational experience.

Distances

The standard full lap is approximately 4.37 miles or 7 km, but this is subject to change. Distances are achieved by completing laps:

  • Half Marathon: 3 laps
  • Marathon: 6 laps
  • Ultra Marathon: 7 laps or more
  • 50 km distance is also available.

There are designated turn points for 3 km and 5 km distances to accommodate younger runners.

Facilities and inclusions

All finishers receive a themed medal and a goody bag, with a vegan option available. An aid station at the start/finish area offers a selection of savoury, sweet, fruit, and cheese items. Toilets and changing facilities are available at the venue from 8:00 AM. Parking is available at Runnymede Pleasure Grounds, which uses a pay-on-exit system.

Important notes

Participants must collect their race number on the day at registration. Final instructions will be emailed in the week before the event. A bag drop area is provided, but it is not secure. Headphones are permitted. The event is held on public footpaths, and runners are asked to be considerate of other users. Visit the organization's website for the most recent information.

50 km
50k
Marathon
Marathon
Half Marathon
Half Marathon
Ultra Marathon