London
Trail Running Calendar near London 2026-2027
Explore the top trail runs near London for 2026-2027! We've gathered 197 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
Multi-lap timed run at Tilgate Park with flexible starts, distances from 5 km to ultra, a 7 hour limit and a bespoke finisher's medal.
A lap based Friday timed run on the Thames towpath offering distances from a single 3.28 mile lap up to ultra distances, with the ten pound charity entry supporting Rays of Sunshine and a special double sided medal.
Beat Box Hill Trails on 10 October 2026 at Box Hill, Surrey offers 21K, 31K and 50K marked trail routes across ridgelines, woodland and chalk climbs with marshal support.
Trail Half Marathon and 10K in Epping Forest, London on 10 October 2026 with marked routes, chip timing, eco measures, and limited parking.
Military style obstacle mud run at Hever Castle Kent with 3 km, 6 km and 12 km options and many obstacles modelled on Royal Marines training.
Trail running in Hurtwood Forest near Guildford with 15 km and 21 km routes, on-site facilities, water stations and medals for all.
An all-surface 25 km loop from Leyton with run leaders, a midway energy stop and post-run kit and community space at Portal HQ.
A single lap 10k through Oxted Woodlands on off road tracks and footpaths, with varied slopes, a water station and finishers' T shirt and medal.
A lap-based out and back run along the Thames in Walton on Thames offering distances from a single 5.3 km lap up to ultra distances with a seven hour limit.
A lap based Friday timed run on a flat 5.3 km out and back course along the river Thames, with distances from 5 km up to ultra. Both attended and virtual entrants receive a finisher medal.
An annual 25 km or 50 km countryside challenge in Kent Surrey and Sussex with written route directions, checkpoints, included food and GPX files.
A guided 10 miles through the Chilterns along canals, reservoirs and past Britain’s oldest post windmill, with trail instruction and a finisher’s medal included.
Timed multi-lap running at Buchan Country Park in Crawley with lap based distances from 5 km up to ultra, flexible start times and a seven hour time limit. Medal and lower cost no medal entry options are offered.
Conquer 58 floors and over 1,500 steps at 22 Bishopsgate to support RNLI lifeboats while enjoying panoramic views of the London skyline.
A 30 mile out and back trail ultra along the River Stort with checkpoints every 5 miles, enforced halfway and overall cut offs, electronic timing and finishers medals.
Looped events where runners choose how many laps to run on the day, with maps, aid stations every lap and distances from 5K to 50K across several venues.
An overnight self supported 50 km ultra from East Grinstead to Brighton on 30 to 31 October 2026, in person event with tickets at £14.46 and no refunds.