Trail Running calendar near London 2026-2027

Looped 7K and 10K courses in Chalfont St Peter and Gerrards Cross let runners choose distances from a single loop to ultramarathon. Aid stations, marked routes, crew access and medical support are provided, with prizes for top finishers in..

Trail running at Matterley Basin in the South Downs National Park with three route options across chalk downland, woodland and ridgelines. Courses are fully marked, timed and supported with outposts, parking and a finishers medal.

London Lea Valley Ultra 2027 is an ultramarathon organised by London based Camino Ultra on 20 March 2027 in London E15 2HB. The race is part of Camino Ultra's programme which also includes coaching and training resources.

A looped trail event at High Lodge Thetford Forest offering distances from 5k to ultra marathon, lap-based formats, on course aid at the lap point, medal options and refreshments at Oak Lodge. Part of entry fees support forest upkeep.

Seven consecutive days of timed running on certified out and back routes along the River Thames in Walton on Thames. Distances from 5 km to ultra are available and finishers earn daily mementos plus a seven day lantern medal set.

A two lap multi terrain 10 km trail race on Easter Monday around Mortimer Fairground and local woodlands, with a canicross option, chip timing, medal and free race photos. The undulating course is not suitable for pushchairs or wheelchairs.

A single loop 50 km trail race around Arundel and the South Downs with about 3,200 ft of ascent, four aid stations, live GPS tracking and chip timing on a fully marked course through predominantly trail terrain.

A 40 or 50 mile trail ultra along the Testway from Linkenholt to Totton in Southampton, with aid stations every 10 miles, marshals and medical support. A shuttle option is available for an extra £10 and there is a 14 hour cutoff.

A trail running event at Stanmer Park on the South Downs Way with three routes from 5 km to 21 km, varied terrain, marked and timed courses, refuelling outposts, and on-site services including photography and a finishers medal.

A 42km off road marathon from Stanmer Park across the South Downs to a finish on Hove Lawns. The route includes Ditchling Beacon and joins the Brighton Marathon for the final 6km.

A circular half marathon through Thetford Forest on mixed hard-packed and forest trails, traffic free and cupless with water refill points. Manual timing, professional photography, podium trophies and an optional eco friendly finisher medal..

A mixed-terrain race day on 10 April 2027 at Remenham Farm, Henley-on-Thames, offering a half marathon, 10K and junior out-and-back along the River Thames.

A 54 mile circular ultra from Brixworth Country Park across Northamptonshire trails, towpaths and roads. The event is fully tracked and offers relay teams plus a 26 mile Rosebud Marathon option.

A 50 mile point-to-point race along the South Downs Way from Worthing to Eastbourne, featuring about 5,700 ft of climb, seven staffed aid stations, mandatory kit checks and a 13 hour finish limit.

Four fifty mile Centurion Running races held from 10 April to 13 November 2027 on South Downs Way, North Downs Way, Chiltern Wonderland and Wendover Woods. Entries are processed through SiEntries.

A family-friendly inflatable obstacle event at Huntingdon Racecourse on 10 April 2027. Choose from 2.5k, 5k, 10k or 15k laps on a 2.5 km circuit with inflatables, music zones, an untimed finish and a finisher's medal.

A 26.2 mile section of the Rose of the Shires Ultra, the Rosebud Marathon runs across Northamptonshire trails, roads and canal towpath with two staffed checkpoints and GPS tracking provided.

A county versus county running challenge along the Brampton Valley Way, with runners starting from Market Harborough or Northampton. The 28 mile out and back course features two long tunnels, four feed stations, and field wide county scorin..

A looped running festival at Haughley Park offering 5k, 10k, half, marathon and ultra distances, with on-course aid, secure on site parking and bespoke finisher medals.

Forest trail runs at High Lodge in Thetford Forest on 11 April 2027 with 5 km, 10 km and a new half marathon options. The chip timed event is fully supported and all finishers receive a medal, merchandise, snack and drink.