Saturn Running - Midweek Chasing Numbers
MAY
1
2026
This midweek event offers a flexible seven-hour window to run your chosen distance along the scenic River Thames. Choose your own challenge with a mix of surfaces, from tarmac paths to light trails. All finishers get a medal and goody bag, with distance pins awarded for longer achievements.
Fri 1 May 2026
50 kilometers
Marathon
Half Marathon
10 kilometers
5 kilometers
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Event Format
The event is a flexible, timed running challenge. Participants have a seven-hour window to complete their run.
Course
The course follows a scenic stretch of the River Thames. The route is a mixed-surface loop, with approximately 60% on a tarmac or well-made path and the remainder on grass and light trail. The trail sections can become muddy depending on the season. The course is fully marked, and no navigation is required.
Distances
Participants choose their own distance. The event is structured around laps. Visit the organization's website for the most recent information.
- The standard lap is 4.37 miles (7 km), but this may be changed to a 3.28-mile loop based on conditions.
- There are also 3 km and 5 km turn points within the lap for younger runners.
- Common distance milestones are 3 laps for a half marathon, 6 laps for a marathon, and 7 laps or more for an ultra marathon.
- A specific 50 km distance is also available.
Registration & Pricing
- A special member entry price of £20.00 is offered.
- Membership guarantees entry and provides a mini-me medal pin at each event.
- Standard entry prices range from £18.00 to £27.00, depending on the chosen distance category.
On-Site Facilities
- Toilets and changing facilities are available at the race headquarters.
- A café is located at the venue.
- There is an unmanned bag drop area near the start/finish line.
- A large, pay-on-exit car park is available at Runnymede Pleasure Grounds.
Event Details
- All finishers who complete at least one lap receive a medal.
- Distance pins for half marathon, marathon, 50 km, and ultra marathon achievements are awarded.
- Finishers receive a goody bag with a selection of snacks, including a vegan option.
- An aid station at the start/finish area provides a variety of savoury and sweet foods, fruit, cheese, and drinks.
- Participants can request a personalized race bib for special milestones.
- Headphones are permitted during the run.
50 km
Marathon
Marathon
Half Marathon
Half Marathon
10 km
5 km
Time Challenge
Ultra Marathon