Saturn 7 Hour Time Challenge - Staines-upon-Thames

JUN
14
2026
Celebrate the 40th anniversary of a cult classic with this flexible 7 hour time challenge along the River Thames. Complete anything from 3km to an ultra distance on a flat lap based course to earn a themed medal.
50 kilometers Marathon Half Marathon 7 kilometers 4 miles 5 kilometers 3 miles

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7 Hour Time Challenge

The Saturn Labyrinth 40th Anniversary Run is a timed event that grants participants full control over their distance. Set along a stretch of the River Thames in Staines-upon-Thames, the event features a course primarily composed of tarmac and well-made paths with a short grass section. The route is fully signed and follows a loop. A full lap is 7 km (4.37 miles), though this may be adjusted to a 3.28 mile loop depending on ground conditions. Minimum participation requires completing 3 km to be considered an official finisher.

Participants can choose to complete various distances during the 7 hour limit:

  • 7 km (one full lap)
  • Half Marathon (three laps)
  • Marathon (six laps)
  • 50 km
  • Ultra (seven or more laps)

The event is open to runners and walkers of all abilities, with specific turn points at 3 km and 5 km to accommodate younger participants adhering to distance regulations. The course is flat and suitable for standard road shoes.

An aid station located at the start and finish of each lap provides a selection of sweet and savoury snacks, fruit, cheese, and vegan options. All finishers receive a themed medal and a goody bag, with a dedicated vegan goody bag available. Those who complete a half marathon distance or further are also eligible for specific distance pins. Facilities at the venue headquarters include toilets and changing rooms, accessible from 8 am. Parking is available at the Bridge Street Car Park. Visit the organization's website for the most recent information.

50 km
Marathon
Marathon
Half Marathon
Half Marathon
7 km
7km (lap)
4 mi
4.37 Miles (lap)
5 km
3 mi
3.28 Miles (lap Option)
7 Hour Time Challenge
Ultra
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