Trail Running Calendar United Kingdom 2026-2027

On 27 June 2026 in Kettlewell, this fundraising event offers three routes from 17 to 4.5 miles across Wharfedale, with GPX routes, on-course water stations, and entry fees that include parking and refreshments.

At Honister Slate Mine on 27 June 2026, runners can choose 5 km or 10 km routes that combine open-fell sections with a c.700 m underground mine passage requiring helmet and headtorch. Courses are waymarked and marshaled; entrants must be 16..

Test your endurance at MacTuffX Ayr in June 2026. Choose between 400m or 800m intervals in solo, doubles, or relay formats. This event is open to all participants aged 18 and over.

A 25 km, 2400 m ascent hill race around four Arrochar munros on 27 June 2026, requiring pre-entry and proven mountain race experience. The unmarked route demands navigation skills; compulsory mountain kit is checked at registration.

A muddy 5k obstacle event at Cheltenham Racecourse on Saturday 27 June 2026 featuring climb crawl and slide obstacles, staggered wave starts, a minimum fundraising target and on-site facilities including parking and toilets.

A 5 km obstacle course at Stanmer Park on 27 June 2026 featuring muddy climbs, crawls and slides across fields and woodland. The event is for ages 13 and over, has staggered wave starts, and a minimum fundraising target of £50.

A Pretty Muddy 5k obstacle event at Tatton Park on 27 June 2026 featuring climbing, crawling and sliding across grass and gravel. Participants must be 13 or older and a minimum fundraising target of £50 applies.

An obstacle 5k at Herrington Country Park on 27 June 2026 where participants climb, crawl and slide through a mixed-surface course. Waves run every 15 minutes, minimum age 13, with fundraising and a finishers medal included.

A 100 miles ultra trail race starting and finishing in Forres, linking the Moray Coastal Trail, Speyside Way and Dava Way. Limited to 100 entries with a 30 hour cutoff; entrants must be 18 and experienced in ultra distance running.

A team relay covering about 100 miles around the Moray Way from Forres, split into 12 legs with teams of up to four, a 24 hour cutoff and a tracker baton to record each handover.

A four hour score event in the Camarthen Fans using pre marked waterproof maps and a full course of about 20 miles. Entry by pre entry costs £10 and includes food, tea, coffee and cake.

Skyline Wales is a long linear 102 km event with 4663 m of climb from Barmouth to Llandegla One Planet. Navigation and significant experience are required, entries are limited and there are strict time cut-offs.

A new hill race at the Tintern Village Fete covering 4.2 km with 215 m ascent. The route starts and finishes in the fete field, climbs via a stone staircase and forestry road, and returns along the Shorncliff Climbers Path.

RunThrough Marlow Trail Run on 28 June 2026 features off-road Half Marathon, 10K and 5K routes around the Thames Valley, with marked trails, chip timing, free photos and a themed medal.

A 13.5 mile trail half marathon on Lundy Island on 28 June 2026, visiting all four corners of the island and running coastal and clifftop trails. Raceboat entries include a chartered ferry aboard MS Oldenburg while non-raceboat entrants arr..

A coastal out and back trail at Sewerby with views to Flamborough, offering 10k, half marathon and marathon distances and a meal at the Ship Inn.

A multi-distance trail running day at Salcey Forest near Northampton offering 10K, half marathon, marathon and 50 km on mostly hard-packed forest trails. The event is cupless, no dogs are allowed, and all finishers receive a medal and drink..

Trail Blazer Coastal Edition near Widdrington advertises a 10K course that runs closer to 12K along the Northumbrian coastal path. The day features live music, food vendors, drinks, llamas in a field, and no cut-off times.

The Snickerthon offers 5k (ish), 10K (ish), half marathon and marathon options around Chasewater Country Park. The multi lap route uses paths and footpaths, includes aid stations and a finisher medal and may feature deer sightings.

A countryside trail run at 3 Brewers Brewery in Hertfordshire offering 10 km and 5 km options on mostly off road terrain. Finishers receive a medal, a pint cup and a free drink while the event supports local charity Earthworks.