Trail Running calendar near Caernarfon 2026-2027

We have found 189 Trailruns within 80 miles of Caernarfon. See below where and when you can find the races.

Discover Warrington's historic transport networks on this circular half marathon. Enjoy a marshalled trail route along canals and rivers with chip timing and a finishers medal included.

Experience a fast and flat out and back race along a historic railway path. Enjoy scenic views of the Dee Estuary and Wales while completing this chip timed event on the Wirral Way gravel trails.

A memorial road and off road event organised by Green Events featuring a half marathon and a 12k in mountainous scenery. The race is cupless, open to those over 16, and lists online and on the day entry options.

The James Coulson Laxey Fell will take place in Laxey on Saturday 24 October 2026. You can run 13 kilometers.

Snowdon, Cadair Idris and Pen y Fan are linked in a 17 mile route with 2,334 m of ascent, usually completed in about 19 hours. Guided options include mountain leaders, transport between peaks and on-route support.

A guided 13 km loop around Llyn Trawsfynydd in Southern Snowdonia on runnable trails, led at a steady pace with regular regrouping stops; organised by OutFit with standard and member entry options.

Night trail running at Delamere Forest with a Spooky Halloween theme, reflective course markings and required head torches. Distances include 10k, Half Marathon and a free 1k kids event with medals.

A night time 5k at Herons Reach Blackpool on 31 October 2026 over multi terrain parkland. Pre booked entry is required with set fees by age category and all finishers receive a glow in the dark medal.

November 2026

Trail running event on Anglesey offering half marathon and 10K routes through Newborough Forest and along Llanddwyn Beach with coastal views across the Menai Strait to Eryri.

A trail running event on 1 November 2026 at Sankey Visitors Centre, St Helens, limited to 250 places with a minimum age of 15 and entry fees of £18.50 (UKA) or £20.00 (unaffiliated).

A relaxed canicross event at Mere Sands Wood on 1 November 2026, with a timed one mile run or walk and an optional 2.5 km social run on mostly flat woodland trails.

Night fell race at Llandegla Forest covering 6.4 km with 229 m of climb. Entry is £5 on the day and runners must carry compulsory kit including a headtorch with at least two hours of light.

Ras Rhobell Fawr is a Meirionnydd Winter Series fell race covering 6 miles with 1900 feet ascent, starting and finishing at Llanfachreth village hall. The out and back route climbs fields and tracks to a summit and requires full WFRA kit an..

A November club organised trail race on a 5 mile route with marshals and marked signage. Registration and post race activity are at The Delph Tavern and car parking is at Upholland High School.

A winter coast to coast ultra on the Llŷn Peninsula on 7 November 2026, with solo 37.5 mile and team of four entry options, organised by Pen Llŷn Ultras and offering age 16 plus eligibility and several entry extras.

A fell race from Cilcain Village Hall over 15.7 km with around 950 m of ascent, requiring navigational skills and prior experience; facilities include toilets and refreshments, and team entries have no charge.

Held in Porth Penrhyn, Bangor on 14-15 November 2026, Slate Trail Ultra offers two trail races of 147 km and 80 km along the Snowdonia Slate Trail with substantial elevation gain and organised aid stations.

A guided 55 km route on Anglesey visiting three high tops with over 2000 m of ascent, starting and finishing at Lligwy beach. The course is split into five supported sections with guides, checkpoints and a wooden medal on completion.

A 40 mile trail ultramarathon starting and finishing in Lymm that circumnavigates Warrington on tracks, paths and lanes. The 2026 race is on 14 November with solo, pair and four person relay entry options.

A 16.1 km fell race from Capelulo with about 594 m of ascent on partially marked terrain where navigation and experience are required. Entry is online only with a £12 fee and participants must be over 18.

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