North Downs 50 Ultra Challenge
Guildford, United Kingdom • 1 Aug 2026
North Downs 50 Ultra Challenge - Guildford, Surrey
The event on Sat 1 AUG 2026 is based at a Guildford basecamp and uses a looped route across the North Downs and sections of the North Downs Way through Surrey countryside. Participants may walk, jog, or run and there are multiple distance options.
- 50 km loop
- 25 km loop
- 10 km loop
Support infrastructure includes covered rest stops approximately every 12.5 km with larger stops around 25 km and 50 km. Snack stops occur roughly every 12.5 km and a meal or food stop every 25 km. Hot drinks, water and energy drinks are available at all stops, with lighter options for those running and provision for dietary requirements. Rest stops provide toilets, medical areas, changing rooms, seating, and baggage pick up.
Medical and care teams include doctors, paramedics, first aiders, podiatrists and masseuses stationed at rest stops and roaming the route. A self help area at every stop supplies basic blister care items and tape.
The route is fully signed with numerous directional arrows and glow sticks for night sections. An event app offers GPS tracking, route maps, training guides and notifications. A timing system scans participants at rest stops with progress monitored by a control room. Event extras include camping options, shuttle transfers and parking. Finishers receive a medal, t shirt, a photo at the finish and a hot finishers meal. Visit the organization's website for the most recent information.