Saturn Running - Midweek Chasing Numbers

MAR
6
2026
This flexible seven-hour time challenge in Staines lets you choose your distance along the River Thames. Run laps on signed paths to earn a medal, a goody bag, and distance pins. The event welcomes all abilities and walkers, with an aid station and facilities available.
7 hour 50 kilometers Marathon Half Marathon 10 kilometers 5 kilometers

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Event Overview

This is a seven-hour time challenge event. Participants choose their own distance by running laps. The minimum distance is 3 km. A full lap is approximately 4.37 miles (7 km), which may be adjusted to 3.28 miles depending on course conditions. Distances can be built from these laps. A turn point for 3 km and 5 km is available within the lap for younger runners. Standard lap benchmarks are three laps for a half marathon, six for a marathon, and seven or more for an ultra.

Course Details

The course follows a stretch of the River Thames. It is fully signed, requiring no navigation. The surface is mainly well-made paths and tarmac with a very short grass section. Road shoes are suitable year-round.

Venue and Facilities

The event is based at The Last Hop in Staines. Toilets and changing facilities are available at the start/finish area from 8:00 AM. There is a bag drop area, but it is not secure. Parking is available at Bridge Street Car Park in Staines (TW18 4TP).

Registration and Participation

Registration is open for specific distances with corresponding age restrictions: 5 km (12+), 10 km (16+), half marathon (17+), marathon (18+), 50 km (20+), and ultra marathon (18+). A Time Challenge entry is also available for participants aged 18 and over. Walkers are welcome. Headphones are allowed.

Included Items

All finishers who complete at least 3 km receive a medal. Distance pins for half marathon, mega-half, marathon, 50 km, and ultra are awarded for those distances. All finishers also receive a standard or vegan goody bag.

Additional Information

An aid table with drinks, savoury, sweet, fruit, cheese, and vegan items is located at the start/finish of each lap. Participants can request a special running number for milestone events. Race day instructions and number pickup details are provided via email and on-site registration. Visit the organization's website for the most recent information.

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