Trail Running Calendar United Kingdom 2025-2026

Welcome to the most comprehensive guide to trail races in the UK for 2025-2026! Our curated list features an impressive 1361 trail runs across the enchanting landscapes of Scotland, and Wales. From the iconic trails of London's green outskirts to the rugged terrains near Birmingham, from Glasgow's scenic paths to Liverpool's historic routes, we've got every trail enthusiast covered.

Whether you're a seasoned trail runner looking for your next challenge or a newbie eager to explore the world of off-road running, our calendar is your one-stop solution. Dive deep into the details by searching for a specific location or simply browse through to discover new trail runs. Looking for all running events? Check out the complete Running Calendar United Kingdom on running.life.

The Stanza Stones Winter Edition is a challenging 24-hour, 50-mile linear ultra running event held in West Yorkshire, starting at Marsden and finishing in Ilkley. The course features over 6,600 feet of ascent, traversing the scenic South Pennines moorland and passing through the historic village of..

The Stanza Stones Ultra is a 50-mile linear trail run in the South Pennines, connecting Marsden and Ilkley with over 6,800 feet of ascent. The route features six unique Stanza Stones—poems about water by Poet Laureate Simon Armitage—carved into rocks along the course. Runners traverse high moorlands..

The Loggerheads Half Marathon, held at Loggerheads Country Park, is a scenic and inclusive trail running event featuring a 7km loop completed three times. The course offers varied terrain and gradients, with each lap passing the start/finish area where runners can access feed stations and support. P..

The Wallop is a scenic 21k trail run held within the Farleigh Wallop Estate in Hampshire. The course features a diverse mix of narrow woodland paths and wide gravel tracks that wind through forests and open land, offering runners an immersive natural experience. This half-marathon event is fully mar..

The Maverick Exposure Lights Dark Oxfordshire is a unique night trail running event held at Stonor Park, nestled in the Chiltern Hills near Henley-on-Thames. Participants can choose from three challenging routes—17 km (long), 12 km (middle), and 7 km (short)—all set within the scenic estate home to..

The Maverick Original Oxfordshire is a trail running event held at the historic Stonor Park estate near Henley-on-Thames, Oxfordshire. Set within the Chilterns Area of Outstanding Natural Beauty, the race offers three challenging routes: 22 km (long), 12 km (middle), and 7 km (short), featuring elev..

The Riverside Marathon & Half Marathon, organized by Phoenix Running, takes place in Walton on Thames, Surrey, along the scenic River Thames. The event features accurately measured and UK Athletics certified routes, with runners completing 4 laps for the half marathon or 8 laps for the full marathon..

The Winter Trail Runs at Dalby Forest, held on Sunday 30th November 2025, offer a scenic running experience in North Yorkshire on the edge of the North York Moors National Park. Participants can choose from a Marathon (26.2 miles), Half Marathon (13.1 miles), or 10km race, all primarily on fire road..

The St Andrews Day Challenge, organized by Zig Zag Running, takes place at Brandon Country Park in Suffolk, located in the heart of Thetford Forest. This multi-terrain event features a 5.3 km loop of gravel footpaths and grass areas. Participants can choose between a 6-hour or 4-hour timed challenge..

The Lee Mill Relays is an annual relay running event held at the Lee Mill Quarry site in Rossendale, Lancashire. Now in its 8th year, the race features teams of four runners, each completing an individual 10.7-kilometer flagged course. The route is described as hard and demanding, with the possibili..

The Surrey Hills Half Marathon is a scenic 13-mile guided trail run starting and finishing in Guildford, Surrey. The course showcases the natural beauty of the Surrey Hills, featuring landmarks such as St Martha's Church and hill, the village of Shere, and panoramic views from Newlands Corner and Ha..

The Medal Mix Challenge Day 2 is a 7-hour timed running and walking event taking place near Capel Lane, Littleham, Exmouth on November 30, 2025. Participants complete laps of a scenic 5.3 km out-and-back course along an old disused train line, fully paved and accurately measured as a road race. The..

December 2025

Winter on the Downs is an ultra-running event featuring two single-loop races of 55 miles and 100 miles, set in the scenic trails of East and West Sussex. Starting and finishing in Eastbourne, participants will traverse iconic landscapes, including Beachy Head and the Seven Sisters. The 55-mile rout..

UTMB Index

The Sussex Downs Trail Run takes place in the scenic South Downs National Park, starting at Plumpton Racecourse near Lewes, UK. Offering three distances—22km, 12km, and 9km—the event caters to all abilities, including newcomers. The course features a mix of flat, tree-lined sections and challenging..

The Drop - Kendal is an exhilarating and challenging race in the UK, designed to test participants' resilience and resourcefulness. Competitors can choose between a 15-mile or 10-mile journey, either solo or in teams. The race begins with participants being transported to an undisclosed drop-off loc..

Fordh Sen Mighal is an iconic 11-mile point-to-point trail race held in Cornwall, UK, running from Lelant to Marazion along the European cultural route. The course showcases stunning Cornish countryside and passes through scenic locations such as Trencrom and Ludgvan. Starting near Lelant railway st..

The Alyn Waters Winter Trails offer 5k and 10k fully marked and marshalled trail running courses set in the scenic Alyn Waters country park. Designed for all abilities, the event encourages participants to race or enjoy a leisurely run without time limits. The accessible paths feature varied terrain..

The Crag Fell Handicap Race, organized by the Cumberland Fell Runners, is a challenging fell running event set in Bleach Green, Ennerdale. This race features a distance of 2.5 miles with an elevation gain of 1345 feet, making it a Category AS race. Participants must prepare adequately with essential..

The Siblyback Santa Scamper is a festive, family-friendly running event held around Siblyback Lake in Liskeard, Great Britain. Scheduled for December 6-7, 2025, it offers three timed distances: 9.6 km, 4.8 km, and a 2.5 km fun run. The event is Christmas-themed and canicross-friendly, welcoming runn..

The Carsington Water Half Marathon & 10k, held at Carsington Water near Ashbourne, UK, offers runners a scenic and undulating trail route around the reservoir. The half marathon features an out-and-back section plus a full loop of the reservoir, while the 10k covers nearly a full loop. Each kilomete..