Trail Running Calendar United Kingdom 2026-2027

A mostly off road 10 km trail run at Trifarm on 09 Sep 2026, the second race in a four event series. The clockwise loop uses public footpaths and bridleways and includes on site parking, a finish water tap and championship points.

A three-evening summer 5K series around Leith Links, Fettes and Inverleith Park in Edinburgh. Events are chip timed, feature prizes and optional finisher medals, with entries priced at £12 per race or £30 for all three.

A trail 5k around Clowbridge Reservoir held as part of a three race series on 3, 10 and 17 September 2026. The two lap anticlockwise course starts at Rossendale Valley Sailing Club and has about 25 m of elevation.

A timed, lap-based Friday run along the Thames with flexible rock up and run starts; the £10 affiliated entry is donated to Rays of Sunshine and participants receive a double-sided charity medal.

A team endurance event covering 100km along the South Downs Way in under 30 hours, with standard teams of four plus support crew and a new relay option for 2026. Teams raise funds for the Gurkha Welfare Trust.

A 24 hour loop race at OnePlanet Adventure in Llandegla, Wales. Individuals or two person teams run as many 3 mile laps as possible on forest trails with about 144 m elevation per lap.

A **100 mile** ultra on runnable trails through Sherwood Forest and towpaths, with two forest loops, well stocked aid stations, a 30 hour cutoff, drop bag points and pacers allowed from about mile 51.

A multi-duration trail event at Tehidy Woods on 12 September 2026, using a marked 4 mile loop. Runners choose from 3, 6, 9 or 12 hour formats and compete on a hilly, technical woodland course.

A guided day running across all 15 Welsh 3000 ft peaks in Snowdonia, covering about 30 miles and 4,000 m of ascent. Transport, mountain guide and support vehicle are included and the event is run as a non competitive guided outing.

On 12 September 2026 a 50 km ultra follows the Boudicca Way from Diss to Norwich, passing historic Iceni and Roman sites. The route is waymarked, the start is close to Diss train station and the event is limited to 250 places.

A bi-annual trail race at Bewl Water near Lamberhurst in Kent, featuring 10 km, half marathon, marathon and 50 km ultra routes around the reservoir with mapped GPX routes and lakeside views.

A fully way marked 47 mile trail around Lake Windermere open to runners and walkers, with GPS tracking, five feed stations, a halfway bag drop and a finishers meal. Participants have 24 hours to complete the circuit.

A 100 km circuit of Leeds on the waymarked Leeds Country Way, mostly trail and passing villages and nature reserves. The event has nine supported checkpoints, mandatory GPX navigation and specified mandatory kit.

An inflatable obstacle course event in Bakewell, Derbyshire with music zones, a finisher medal and multiple distances. Laps repeat a 2.5k loop offering 15 to 90 obstacles in a non timed, family friendly format.

A multi-distance trek and trail event along the Thames from Putney Bridge to Henley on 12/13 Sept 2026, offering 100 km to 10 km options with regular rest stops, catering, medical support and GPS tracking.

A high-level 10.5-mile trail race around southern Dartmoor, touching Ryder's Hill and ascending Red Lake Volcano, with rough, rocky and boggy terrain and almost 650 m of ascent, starting and finishing in Scorriton.

Trail ultramarathons in the Peak District on 12–13 September 2026 with distances from 12 km to 110 km, UTMB Index status and camping options. The event also forms part of the GB SLAM series.

A point to point *50K* ultra along the Suffolk coast from Lowestoft to Aldeburgh, fully marked and carrying a 9 hour time limit. The route passes Southwold, Dunwich Heath, RSPB Minsmere, Sizewell and Thorpeness with staffed aid stations.

A Backyard Ultra at High Lodge, Thetford Forest where runners complete a *4 miles 880 feet* loop every hour; full, 12 hour and 6 hour entry options are available, with camping, basic aid station and chip timing.

A 40 mile ultra from Glenbuck Loch to Riverside Stadium in Ayr on 12 Sep 2026, featuring water stations, 10 mile checkpoints with food and drop-bag support. Relay teams of 2 or 3 split the route into 17, 14 and 9 mile sections.