London
Trail Running Calendar near London 2026-2027
Explore the top trail runs near London for 2026-2027! We've gathered 259 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
April 2027
10K and half marathon trail races in Alexandra Gardens, Windsor on 4 April 2027 supporting Brain Research UK, with chip timing, free photos and an event village.
A seven-hour Time Challenge along the River Thames with distances from 3 km to 50 km, themed medals, distance pins and on-course aid.
Scenic routes across Wimbledon Common offering a Half Marathon and 10k with chip timing, free finish photos, on-course marshals and an event village at Richardson Evans Memorial Playing Fields.
A timed Friday run on a flat 5.3 km Thames towpath lap with flexible starts; the £10 charity entry supports Rays of Sunshine and all finishers receive a medal.
Seven hour Time Challenge along the River Thames in Staines offering distances from 3km up to 50km, medals, pins, aid stations and goody bags.
A 7 hour fundraising Time Challenge along the River Thames offering distances from 3 km up to 50 km with themed medals and charity pins for Save The Rhino.
A 7 hour Time Challenge along the River Thames in Staines with distances from 3 km to ultra, themed medals, goody bags and aid stations.
An evening 10 km trail run on 22 Apr 2027 with a limited field of 50, a new course provided as GPX and narrative, and self sufficient participation expected.
An untimed inflatable obstacle run at Hertfordshire County Showground on 24 April 2027 with 2.5k, 5k, 10k or 15k lap options, music zones and a finisher's medal.
Timed laps at Tilgate Park on 24 April 2027 offering distances from 5 km to ultra with medal and no medal entry options.
A seven hour time challenge along the River Thames in Staines offering distances from 3 km to 50 km, themed medals, goody bags and on-course aid with vegan options.
An alternative to the London Marathon at Walton on Thames featuring a UKA certified 3.28 mile lap. Options include full and half marathon or a seven hour timed event, with a 150 mm finish medal for participants.
May 2027
A marked 100 mile point to point trail race along the Thames from Richmond to Oxford with a 30 hour cutoff, aid stations, pacers from mile 51 and mandatory kit checks.
Guided 30 miles trail run from Newlands Corner, Guildford, linking the North Downs Way, Greensand Way and Downs Link with group pacing and coach support.
Guided trail run at Box Hill covering 12.5 miles with about 1000 m of ascent across woodland and technical climbs, led at a steady group pace by an experienced guide.
A seven hour time challenge along the River Thames in Staines offering distances from 3 km up to 50 km, with medals, distance pins, goody bags and aid stations.