Trail Running Calendar United Kingdom 2026-2027

A marathon along the North Wales Pilgrim Trail at Tir Gwyn, Pwllheli on 6 June 2026. Entry is for age 18 and over and costs £64 plus a 6% booking fee; entries close 30 May 2026.

A mountain hill race in the Western Mamores covering about 13 km and 1300 m of ascent over two Munro summits. The unmarked, clockwise route starts and finishes near Lower Falls and requires mandatory mountain safety kit.

A 12 hour backyard ultramarathon at Bakehouse in Bristol on 6 June 2026. Participants run one lap each hour on 3 km, 4 km, 5 km or 6 km loops, with bike and row erg options available, raising funds for Andy's Man Club.

A 10k and 15k trail event on 6 June 2026 around the Forest of Bowland, based at The Green Man in Inglewhite, with chip timing, technical t-shirts and on-route water station.

A three-race Forest Five (mile) series at Jubilee Retreat on 6 June, 4 July and 1 August 2026, with single-race and discounted series entry, age-category aggregate trophies and a third-race ELVIS fixture with team prizes.

Trail running and rucking in the Mendip Hills near Winscombe on June 6, 2026. Choose 8 km or 14 km, race in Pro or Open categories, and use a provided GORUCK Rucker 4.0 for ruck entries.

A community 5k obstacle event at Cassiobury Park where participants climb, crawl and slide around a largely flat, mixed terrain course. Waves run every 15 minutes and the event supports Cancer Research UK fundraising.

A 5k obstacle run at Willen Lake, Milton Keynes, part of Cancer Research UK’s Race for Life. Staggered wave starts, a minimum age of 13, on-site facilities and event accessibility support are provided.

Pretty Muddy 5 km at Markeaton Park is an obstacle course of climbs, crawls and slides completed at each participant's own pace. Waves run every 15 minutes, participants must be 13 or older, and a medal and fundraising pack are provided.

A Pretty Muddy 5k obstacle course at Graves Park on Saturday 06 Jun 2026, featuring mud obstacles and varied terrain. Participants must be 13 or older and are asked to meet a minimum fundraising target of £50 for Cancer Research UK.

An obstacle 5k through Prospect Park, Reading on Saturday 06 Jun 2026, featuring climbing, crawling and sliding across grass, slopes and woodland. The event lists entry fees, a minimum fundraising target and on-site facilities plus a finish..

A muddy 5k obstacle course in Avenham and Miller Park on 06 June 2026, featuring climbs, crawls and slides across a single lap route. The event passes riverside parks and includes on-course marshals, basic facilities and a minimum fundraisi..

Moel Hebog is a fell race from Beddgelert covering 6.7 km with 750 m of ascent. Navigation and experience are required; entry is £5 on the day and competitors must be over 18.

The Weets will take place in Barnoldswick on Saturday 6 June 2026. You can run 9 kilometers.

Races in Bath run along the Two Tunnels shared path, passing the Devonshire Tunnel 408 m and Combe Down Tunnel 1,672 m. Distances range from 500 m fun runs to a 50 km ultra with relay and multiple route options.

A multi-distance running event around Ousden and Suffolk countryside offering 5k, 10k, half, marathon and ultra options with Dalham Kiln and Goldings Hills routes, aid stations every 10 km, and parking included.

BigSea Trails (WATER) is the water-themed event on the Isle of Purbeck, with single-lap coastal and hill routes from Knoll Beach. Four distances run to landmarks such as Corfe Castle and Old Harry Rocks with stocked aid stations and mandato..

A 15.5 mile off road loop around Loch Lyon in the Perthshire hills with about 1,500 ft of ascent, multiple river crossings and a mid race water station. Camping is available at the dam the night before.

A Spartan obstacle weekend at Hopetoun Estate near Edinburgh on June 7, 2026, with Sprint, Super, Beast and a Kids Race; a Trifecta in One Day is available and Tough Mudder runs on the same weekend.

A forest trail event at Wendover Woods on 7 June 2026 offering a half marathon, a 10k multi-lap course and a junior run. The hilly route includes route maps and GPX files, with onsite parking, a cafe and spectator facilities.