Gatliff Marathon

OCT
17
2026
Annual 25 km and 50 km challenge walk, jog or run through Kent, Surrey and Sussex countryside with written route instructions, checkpoints and food included.
Sat 17 Oct 2026
50 kilometers 25 kilometers

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Gatliff Marathon

The Gatliff Marathon is an annual challenge walk, jog or run held in the Kent, Surrey and Sussex countryside. The event for 2026 takes place on Saturday 17 October and offers two route distances. The objective is to complete the chosen distance within ten hours while following written route directions and checking in at each checkpoint.

Entrants receive a detailed route description and GPX files. Routes use footpaths and tracks and are not waymarked; written instructions include grid references, What3words locations and magnetic bearings. There are five checkpoints on the 50 km route and two on the 25 km route. Participants must have their checkpoint card signed or punched at each checkpoint to validate completion.

  • 50 km (about 31 miles)
  • 25 km (about 15.5 miles)

All food and drink provided by the organisers is included in the entry fee. Snacks and drinks are available at all checkpoints and soup and sandwiches are provided at one 50 km checkpoint. Hot food, tea or coffee and showering facilities are available at the finish. Entry fees in advance are £23 for the 50 km route and £21 for the 25 km route, with an additional £2 for on-the-day entry. Entry is possible online or by posted form.

Recommended kit and provisions are listed on the entry form; essentials include water and off-road footwear. Professional first aid cover is provided and a bag room is available at participant risk. Visit the organization's website for the most recent information.

50 km
25 km
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