Saturn Running - Midweek Chasing Numbers

MAR
5
2027
A 7 hour Time Challenge along the River Thames where participants choose distances from 3 km up to ultra with medals, distance pins, goody bags and aid stations.
50 kilometers Marathon Half Marathon 10 kilometers 5 kilometers

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Midweek Chasing Numbers - March 2027

This is a 7 hour Time Challenge event organised by Saturn Running and licensed by the Trail Running Association, held under UK Athletics rules. The format lets participants control their own distance with a minimum official finishing distance of 3 km. A full lap is listed as 7 km (4.37 miles) but the loop may be changed to a 3.28 mile circuit depending on course conditions. The lap includes 3 km and 5 km turn points to help younger runners meet UK Athletics distance rules.

Distances available include:

  • 3 km minimum distance, part of a lap
  • 5 km turn point within the lap
  • 7 km full lap (4.37 miles) subject to change
  • Half marathon equals 3 laps
  • Marathon equals 6 laps
  • 50 km available; ultra distances are 7 or more laps

The course runs along a stretch of the River Thames and is fully signed. About 60% of the route is on a well-made path or tarmac, with the remainder on grass and light trail that can become muddy. Road shoes are suitable year round; trail shoes may be preferred for grip on softer sections.

Finishers who complete at least 3 km receive a medal. Distance pins are given for half-marathon and longer distances. All finishers receive a goody bag, with a vegan option available. An aid table and drinks table are provided at the start/finish area with savoury, sweet, fruit, cheese and vegan items.

Facilities at The Last Hop include toilets but no separate changing rooms or showers. Parking is available at Bridge Street Car Park in Staines TW18 4TP. Final race instructions are sent by email in the week before the event and number pick up is on the day at race registration. A non-secure bag drop is provided. Headphones are allowed. Events take place on public footpaths and participants should be considerate of other path users. Visit the organization's website for the most recent information.

50 km
Marathon
Marathon
Half Marathon
Half Marathon
10 km
5 km
7 Hour Time Challenge
Ultra Marathon
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