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 1405 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 Two Islands Half Marathon is a popular running event traditionally held in late August since 2011, except for 2020. The race covers the half marathon distance of 21.1 kilometers and is known for its unique course that presumably connects or features two islands, offering a scenic and memorable r..

The Saturn 7 Hour Time Challenge in Durham is a trail running event held along the scenic River Wear, offering views of Durham Cathedral. Hosted at the Durham Amateur Rowing Club, the course features fully signed laps of either 4.37 miles (7 km) or possibly a 3.28-mile route, allowing participants t..

September 2026

The Henley River Half Marathon, 10K & Junior Race takes place on September 5, 2026, at Temple Island Meadows, Remenham Lane, Henley-on-Thames, UK. This event features a half marathon, a 10K, and a junior race, all set along a scenic route by the Thames. The course offers mixed, undulating terrain wi..

The Robin Hood 100 is a fully marked ultra running event held in South Wheatley, Retford, Nottinghamshire. The scenic course features runnable trails with nice underfoot conditions, heading into Sherwood Forest—Robin Hood's legendary homeland—and returning to South Wheatley. The route includes two l..

The Woods 2026 is a unique running event set on the North Coast, featuring a 4-mile loop through the scenic Tehidy Woods. Participants can choose from four race durations: Rowan (3 hours), Ash (6 hours), Beech (9 hours), and Oak (12 hours), with the winner determined by the maximum number of laps co..

The Yorkshire 3 Peaks 70/100km Ultra is a renowned trail running event taking place in North Yorkshire, designed for both novice and elite ultra-racers. Participants can choose between a 70km route, which includes the iconic peaks of Whernside, Ingleborough, and Pen-y-Ghent, or extend their challeng..

The Three Towers Ultra is a challenging running event featuring two distances: 39 miles and 55 miles, set in the scenic West Pennine moors of Lancashire. Participants will navigate through rugged terrain while visiting three iconic towers: Jubilee, Rivington, and Peel. The course is unmarked, requir..

The Ranger Ultras Yorkshire Pen-Y-Ghent 50k is an exciting ultra-running event designed for both novice and experienced athletes. Set in the stunning North Yorkshire landscape, the route features classic limestone trails and a total ascent of 1280 meters. Participants will start and finish at the Ha..

October 2026

The Saturn 7 Hour Time Challenge in Durham is a trail running event held at the Durham Amateur Rowing Club along the scenic River Wear, offering views of the Cathedral. Participants can run laps of a 4.37-mile (7km) course, with a minimum distance of 5km, and choose their own distance within the 7-h..

The Ranger Ultras High Peak Ultra is an exciting running event featuring 70km and 100km courses, set to take place in October 2026. Participants can choose their distance on the day, with a generous 24-hour cut-off time. The route retraces the historic Cromford and High Peak Railway, offering a scen..

The Ranger Ultras High Peak HP18km Trail Run is an exciting trail running event designed for participants of all skill levels, from beginners to elite athletes. Set in the stunning Peak District, the 18km course features a mix of fast trails and challenging ascents, with a total ascent of 488 meters..

November 2026

The Lighthouse Marathon and Ultra is a challenging running event held in Cornwall, starting near Pendeen and finishing at Godrevy Lighthouse. The marathon covers 26 miles along a demanding coastal path featuring rocks, sand, tarmac, and over 4,000 feet of elevation gain. The Ultra race begins at Lan..

The Saturn Remembrance Run 2026 - North East takes place in Durham City at the Durham Amateur Rowing Club. This inclusive trail event features a 7-hour timed run on a scenic 4.37-mile (7 km) loop along the River Wear, offering views of the Cathedral. Participants can choose distances from 5km up to..

December 2026

The Fordh Sen Mighal is a popular running event held in Cornwall, starting at St Uny's Church in Lelant and finishing in Marazion, tracing a scenic point-to-point route along the European cultural path from the north to the south coast. This race, organized by Bys Vyken Events, attracts runners from..

May 2027

The MTC Glaistig is a challenging 31-mile ultra marathon held in Scotland, forming Day 2 of the nine-day Mount to Coast SCOTIA End to End Challenge. The race starts at the Traquair Arms Hotel in Innerleithen and finishes at the Travelodge Edinburgh Airport, featuring a route with approximately 2,793..

The MTC Nuckelavee is a challenging 41-mile ultra marathon held in Scotland, forming Day 3 of the nine-day Mount to Coast Scotia End to End Challenge. The race starts at Travelodge Edinburgh Airport and finishes at Travelodge Perth, covering varied terrain with a total ascent and descent of around 2..

June 2027

The MTC Grimalkin is a challenging 34.5-mile ultra marathon held in Scotland, forming Day 4 of the nine-day Mount to Coast Scotia End to End Challenge. The race starts at Travelodge Perth and finishes at Atholl Guest House in Pitlochry, featuring a route with approximately 3,126 feet of ascent and 2..

The MTC BEITHIR is a challenging 39-mile ultra marathon held in Scotland, forming Day 6 of the nine-day Mount to Coast SCOTIA End to End Challenge. The race starts at Forces Manor in Kingussie and finishes at Travelodge Inverness, covering rugged terrain with 2,256 ft of ascent and 2,978 ft of desce..

The MTC SELKIE is a challenging 43-mile ultra marathon held in Scotland, forming Day 8 of the nine-day MTC SCOTIA End to End Challenge. The race starts at the Eagle Hotel in Dornoch and finishes at Inver Caravan Park in Dunbeath, featuring a route with approximately 3,880 feet of ascent and 3,743 fe..

The MTC Kelpie is a 38-mile ultra marathon held in Scotland, forming Day 9 of the nine-day Mount to Coast SCOTIA End to End Challenge. The race starts at Inver Caravan Park in Dunbeath and finishes at John O’Groats, featuring a route with approximately 1,753 feet of ascent and 1,929 feet of descent...