Saturn Running - Midweek Chasing Numbers

JUN
5
2026
Run a friendly riverside 7 hour Time Challenge along the Thames and choose your distance from a 3 km minimum up to marathon and ultra. Signed laps, mixed path and grass underfoot, cafe and aid station support and medals for finishers make it a perfect midweek test.
7 hour 50 kilometers Marathon Half Marathon 10 kilometers 5 kilometers

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Event

Midweek Chasing Numbers June 2026 is a 7 hour Time Challenge held by Saturn Running at Wraysbury Skiff and Punting Club, Riverside, Egham TW20 0AA. Participants choose how many laps to run, with a minimum distance of 3 km. A full lap is stated as 4.37 miles / 7 km but may change to a 3.28 mile loop depending on course conditions. It is 3 laps for a half marathon, 6 laps for a marathon and 7 or more laps for an ultra. Finishers who complete at least 3 km receive a medal; distance pins are available for half-marathon and longer.

Distances

  • 3 km - minimum distance.
  • 5 km - 5k turn point within the lap; entrants aged 12+.
  • 10 km - entrants aged 16+.
  • Half Marathon - 3 laps; entrants aged 17+.
  • Marathon - 6 laps; entrants aged 18+.
  • 50 km - available; entrants aged 20+.
  • Ultra Marathon - 7+ laps; entrants aged 20+.
  • Time Challenge (7h) - flexible distance; entrants aged 17+.

Course and facilities

The course runs along the River Thames and is fully signed. Approximately 60% is on 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 help on the trail sections. Race HQ provides toilets, changing facilities and a cafe. Bag drop is unmanned and items are left at participants' risk. There is a pay-on-exit carpark at Runnymede Pleasure Grounds. An aid and drinks table at the start/finish of each lap offers savoury, sweet, fruit, cheese and vegan items. Headphones are allowed and runners should be considerate of other path users. Entry prices range from £18 to £27, with a £20 member-only entry option. Visit the organization's website for the most recent information.

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