Harlow
Trail Running Calendar near Harlow 2026-2027
Explore the top trail runs near Harlow for 2026-2027! We've gathered 109 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
A half marathon and 10K through Epping Forest, London on 10 October 2026, run on marked woodland trails with aid stations, chip timing and an eco friendly focus.
Approx 6 mile self navigation trail in Chelmsford with glow in the dark medals and light refreshments, limited to 120 places; minimum age 16.
Timed, lapped run at Old Warden on 16 October 2026 with flexible start times, distances from one 3.28 mile lap to ultras and a seven hour limit.
A guided 10 mile trail through Chilterns waterways and reservoirs, passing Britain’s oldest post windmill, with trail instruction and a 2026 finisher’s medal.
A 30 mile out and back ultra along the River Stort and Lee navigations on the Hertfordshire Essex border, mostly flat grassy and gravel trail with checkpoints every 5 miles, electronic timing, medals for finishers and trophies for top three men and w..
Timed, self supported loop around Canvey Island starting and finishing at Waterside Farm Leisure Centre with a pub stop at 10 km and a four hour cutoff.
Looped races at several Buckinghamshire venues let runners use 7K or 10.8K loops to build distances from 10K up to ultra, with aid stations, crew support and medals.
A countryside walking event from Blackmore with a 26 mile figure of eight route and an 18 mile option, forming part of the Essex and Herts Triple Challenge.
A fully marked single loop 50K trail race around the Chilterns starting and finishing in Berkhamsted, with three aid stations, mandatory kit and a nine hour cutoff.
A Halloween themed 6.66 km trail run in Chelmsford on 31 October 2026 with GPX/Strava route support, fancy dress prizes and a brewery finish offering a medal, drink and crisps.
November 2026
An after dark multi terrain 10 km and 5 km event in Leigh on Sea with chip timing, mandatory headtorches and sustainably sourced finishers medals.
A November muddy obstacle event in Essex offering 6 km, 12 km and 24 km+ courses with natural and man‑made obstacles including a Deathslide and zip wire.
Join a community of runners at Richmond Park for a series of timed races supporting Movember. Enjoy a hilly tarmac course with distances ranging from a kids mini run to a half marathon in a supportive atmosphere.
A point to point half marathon along the Grand Union Canal from Cowley to Cassiobury Park in Watford, chip timed with water stations and a sustainable wooden finisher medal.
Country routes from Barton-le-Clay with 12 miles for walkers only plus 18 and 26 mile courses, checkpoints, refreshments and map navigation.
A fully marked 50km trail from Putteridge Bury across North Chiltern ridgelines and hills, with three aid stations, UTMB index status and an 8h45 time limit.
A mostly off road 15k at Trifarm, Boreham, run on public footpaths and bridleways with on-site parking, water refill points and manual timing.
A Half Marathon and a 10k on Wimbledon Common in London supporting Beder, with a trail marked course, course marshals and an event village offering food, drink and partner goodies.
A 10 km road and riverside run starting and finishing at Kingston Hawker Centre, using chip timing and offering a finisher medal, refreshments and baggage drop. The event supports Kingston Hospital Charity and notes nearby train and local parking o..