Trail Running Calendar United Kingdom 2026-2027

Test your endurance at the Manchester Backyard Ultra where you must complete 4.167 miles every hour until only one runner remains. This out and back course at Giants Seat Scout Camp challenges runners to go beyond their limits.

The Gelt Gladiator will take place in Lanercost on Saturday 13 June 2026.

Trail running on 13 June 2026 at Wilkswood Farm near Swanage, Dorset. Three waymarked routes of 23 km, 13 km and 7 km follow coastal terrain with outposts on the middle and half routes and a four hour finish guideline.

A timed, multi-lap event at Chorlton Water Park using a 5.3 km out and back course along the River Mersey. Runners can cover one lap up to an ultra within a seven hour limit and all participants receive a finishers' medal.

Run the 9.5 km Wincle Trout fell race in the Peak District, featuring a 320 m climb and a river crossing. The event is part of the lively Wincle Village Fete. A shorter 3 km junior race is also available.

An inflatable obstacle course at East Brighton Park on Saturday 13 June 2026 offering 2.5 km, 5 km, 10 km and 15 km options with repeated 2.5 km laps, multiple obstacles and family and group ticket options.

A timed, multi-leg ultra from Kielder Castle where solo runners or Ekiden teams cover five radial routes totalling 170 miles within 36 hours, with the North leg to Carter Bar required as the finale and self navigation required.

A chip-timed 5K and 10K on an undulating multi-terrain route around Neroche Primary School, with medals and age-group prizes, plus a children’s fun run that accepts a £2 donation. Proceeds support Neroche School PFA.

A timed multi-lap event on a flat 5.3 km out and back towpath course along the Thames offering distances from 5 km up to ultra with flexible start times, themed ducky incentives and a large spinning medal for finishers.

A self-navigated fell run and challenge walk in Swaledale on 13 June 2026. The 24 mile course has a ten hour time limit, minimum age 14 and no dogs are allowed.

A **20 km** fell event near Kirkby Stephen with 730 m of ascent, passing High Pike and the Nine Standards. The mass start welcomes walkers and runners, and the course is waymarked with checkpoints.

A 20 km Category AL Scottish hill race on Arran with 1670 m of climb, mostly unmarked terrain and mandatory navigation skills. Checkpoints, cut off times and kit requirements apply.

A two-day trail running weekend in Grizedale Forest with an 8 hour relay and a 22 km race, plus camping, food stalls and talks. Minimum age 16; weekend and day ticket options with concessions for under 18s.

Ullapool Forest Runs stages the Heartbreak Hill five hour challenge in Inverlael Forest, where participants complete 3.6 km laps as individuals or teams. The event supports Highland Hospice and awards medals to all finishers and to top fini..

Test your endurance at MacTuffX London in Barking. Choose from solo, doubles, or relay categories with interval distances of 10x400m or 10x800m. This event is open to all participants aged 18 and over.

A new approximately 12k mainly off road race at Rother Valley Country Park on 13 June 2026, organised by Killamarsh Kestrels Running Club. The course is marked with marshals and tape and finishers receive a mug, goody bag and access to tea,..

A long-standing Green Events race in Llanwrtyd Wells where runners compete directly with horses over mountainous terrain, timed electronically. The event has enforced cut-offs and an escalating jackpot for any runner who beats the first hor..

A muddy 5k obstacle course at Thornes Park on 13 June 2026 that raises funds for Cancer Research UK. The uneven, mixed-surface route includes obstacles and hills; participants must be 13 or older and a minimum fundraising target applies.

Pretty Muddy 5k at Sandwell Valley Country Park on 13 June 2026 is a muddy obstacle course with staggered wave starts and a minimum fundraising target. Facilities include toilets and refreshments but it is not wheelchair accessible.

A 5k obstacle course around Strathclyde Loch with climbs, crawls and slides, suitable for participants aged 13 and over. The event includes wave starts, a minimum fundraising target and on-course marshals.