Saturn 7 Hour Time Challenge - Wraysbury

AUG
7
2026
Scenic 7 hour timed run along the River Thames on 7 Aug 2026 lets you choose any distance from 3 km to ultra. Finishers get medals and distance pins, with aid stations, cafe and vegan goody bags.
50 kilometers Marathon Half Marathon 7 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event details

This is a 7 hour timed running event on 7 August 2026. Entrants may run any distance they choose during the 7 hour period. The event limit is 300 entrants and the minimum age is 12 years. Entries close on 06/08/2026. Transfers are allowed online for £2.50 up to the day before the event; a deferral to another event is available for an £18 fee. Distance pins are awarded for half-marathon, mega-half, marathon, 50 km and ultra distances. A finisher medal is awarded to anyone who completes at least 3 km. Goody bags are provided, including a vegan option.

  • 3 km minimum
  • 7 km lap (4.37 miles) - may change to a 3.28 mile loop
  • Half marathon = 3 laps
  • Marathon = 6 laps
  • Ultra = 7 or more laps
  • 50 km distance available

Course and facilities

The course runs along a stretch of the River Thames and is fully signed. Surfaces are mainly well made paths and tarmac with a very short grass section; road shoes are suitable. The regular course may change subject to health and safety review and land owner approval. There is an aid table and drinks at the start/finish with savoury, sweet, fruit, cheese and vegan items. Toilets and changing facilities are at the race HQ, which also has a cafe. A bag drop is available but is unmanned. Parking is available at Runnymede Pleasure Grounds (pay on exit). Headphones are allowed. Visit the organization's website for the most recent information.

50 km
50 Km Distance
Marathon
Marathon (6 Laps)
Half Marathon
Half Marathon (3 Laps)
7 km
Full Lap
3 Km Minimum Distance

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