North Downs 50 Ultra Challenge

Guildford, United Kingdom • 12 Jul 2025

The North Downs 50 Ultra Challenge is a trail running and trekking event held in the Surrey Hills, starting and finishing at the Guildford basecamp. Participants can choose from 50km, 25km, or 10km looped routes that showcase the scenic North Downs Way and surrounding countryside, offering varied terrain and stunning southern views. The event welcomes walkers, joggers, and runners of all experience levels, providing full support including covered rest stops with food and drink, medical and massage teams, GPS tracking, and a festive finish-line celebration with medals and T-shirts. Optional university-style accommodation and shuttle transfers are available, making it accessible and well-supported for solo or team challengers. Visit the organization's website for the most recent information.

Race information

UTMB 20K UTMB 50K
50 km
830 m+
50 Km Loop
25 km
530 m+
25 Km Loop
24 km
600 m+
~24 Km Half Route to Dorking
10 km
230 m+
10 Km Loop
Visit the organization's website for the most recent information.
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