Guildford
Trail Running Calendar near Guildford 2026-2027
Explore the top trail runs near Guildford for 2026-2027! We've gathered 218 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
Seven hour Time Challenge along the River Thames in Staines offering lap based distances from 3km to ultra, with medals, pins, aid stations and goody bags.
Trail event at the Cricket Green offering 1k, 5k and 10k distances with chip timing, medals, onsite music and food, raising funds for local charities.
Community fun run in Horsted Keynes with 2.5K, 5K and 8K countryside routes; proceeds split between the school PTA and Rocking Horse Children’s Charity.
Join this flexible timed event along the flat River Thames towpath in Walton on Thames. Complete as many laps as you like over seven hours to achieve distances from 5km to an ultra marathon.
A timed lap event in Crystal Palace Park where runners complete 2.65 km laps within a seven hour limit, choosing distances from 5 km to ultra. The off road course mixes tarmac and gravel and all participants receive a bespoke finishers medal.
A Henley basecamp trail event with looped options of 50 km, 25 km and 10 km, covered rest stops, GPS tracking, medical support, camping and finish-line hospitality.
Enjoy a flat riverside run along the Thames with a chocolate themed aid station. Choose your own distance from 5km to ultra marathon within a flexible seven hour time limit.
Trail run in Bisham, Marlow on 27 September 2026 with Half Marathon, 10k and 1k routes along the Thames and through woodland.
A timed lap based run at Buchan Country Park in Crawley on 27 September 2026 with distances from 5 km up to ultra and flexible start options. Entry choices include a medal or a lower cost no medal option.
October 2026
A 7 hour Time Challenge on a signed riverside loop in Staines offering flexible distances from 3 km up to 50 km, with medals, distance pins, aid stations and goody bags.
A timed track event in Walton on Thames on 2 October 2026 offering 6, 12 and 24 hour formats with chip timing, 400 m laps and distance options from 5 km up to 100 mile equivalents. The track is limited to 100 runners at once.
Guided 30 mile trail run on the North Downs Way around Guildford, recommended for first time ultra runners with coach support and on route refreshments.
A 50 km Epping Forest event in London on 03 October 2026, listed as part of Camino Ultra’s 2026 events.
A guided 30 mile trail run from St Martha's Hill exploring the Surrey Hills and Box Hill with an experienced ultra runner and coach. Group pace, recommended 22 miles training, cost £55 and an alcohol free beer may be available.
An inflatable obstacle-course event at Kempton Park Racecourse on 3 October 2026 offering 2.5K, 5K, 10K and 15K options for ages 5 and up.
A timed endurance event around King George’s Parks where participants run a 3.5 km loop every 30 minutes for up to 12 hours, either solo or in pairs.
A family friendly 5k obstacle and colour run near Dorking Surrey in October 2026 with mud, water features and obstacles for ages 6 and up.