Trail Running Calendar East of England 2026-2027

A lapped event on the Flitch Way near Rayne offering 5 km, 10 km, half and full marathon and a six hour challenge. Loops are 5.3 km with an aid station at the end of every lap and a bespoke medal choice.

A marathon and half marathon on the largely traffic-free Marriott's Way, supporting the East Anglian Air Ambulance, with coach transport available, finisher medals, on-route aid and prizes for top finishers.

A multi-distance running festival at High Lodge, Thetford Forest with looped 5 km laps, on-course aid, post-run tea, coffee and cake, and bespoke medals for finishers.

A 42-mile trail race from Chipping Ongar to the ancient Chapel of St Peter-on-the-Wall, following an old pilgrimage route through rural Essex. Mostly off-road and often muddy, the route is waymarked with GPX support, four outdoor checkpoint..

A single lap undulating 10k trail race at Hadleigh Country Park with steep hills, deep mud, technical terrain and mandatory trail shoes.

Guided trail half marathon in the Chiltern Hills: about 13 miles with grouped pacing, a mid-route refreshment point and a finisher’s medal.

Trail races of 25 km and 50 km through Harrold-Odell Country Park near Bedford on 13 March 2027, organised by Thunder Races.

Trail event at Hyde Hall Farm offering 10k, half, full and ultra distances with lap-based courses, water at the lap point, secure parking and a bespoke finisher medal. The event is cupless so bring a refillable cup or bottle.

A PARAS'10 event in Friday Woods featuring a 3 mile loop with one to three laps, categories for runners, TAB entrants and canicross. A 2 mile junior race is available for ages 10 to 15.

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.

A night running challenge at Hyde Hall Farm offering twelve hour or six hour shifts under the stars. Head torches are required and hot drinks plus an aid station are provided with a medal for every finisher.

A cupless trail half marathon through Thetford Forest on mixed hard-packed and grassy paths, with podium trophies, manual timing, and a minimum age of 17.

A family friendly inflatable obstacle fun run in Huntingdon on 10 April 2027 with 2.5k laps, multiple distances, music zones, a finisher's medal and on course water.

Haughley Festival of Running at Haughley Park, Suffolk offers 5k, 10k, half, marathon and ultra distances over pathways and some trails, with on-site parking, an aid station and event 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.

Guided marathon through the Chiltern Hills with qualified run leaders, checkpoints, and a wooden finisher medal on 17 April 2027.

A family-oriented inflatable obstacle course and fun run in St Albans on 24 April 2027, with 2.5k, 5k, 10k and 15k options, music zones, on-course water and finisher medals. Group, family and charity discounts are offered.

A multi-distance road event at Suffolk Running Centre on 25 April 2027 offering 5k, 10k, half and full marathon on officially measured scenic routes with aid stations, parking and a bespoke finisher medal.

A four leg stage trail relay along the Roach Valley Way covering 23 miles in total. Teams of four navigate by maps and way markers while proceeds support Havens Hospices.

A 5 km Pretty Muddy obstacle course at Norfolk Showground with a mix of paths and grass, staggered wave starts every 15 minutes and an age limit of 13 and over. The event supports fundraising for Cancer Research UK.