Trail Running calendar near Caernarfon 2026-2027

We have found 181 Trailruns within 80 miles of Caernarfon. See below where and when you can find the races.

A loop trail event in Blackpool offering 10K, half, marathon and ultra distances on a 10K loop with medals and on-course refreshments.

A fell race near Criggion covering 11.5 km with 790 m of ascent on a partially marked course that requires navigational skills. Entry is £8 and teams may enter free of charge.

A community focused 5 mile mixed terrain race in Rimrose Valley Country Park, Waterloo, Liverpool, with a scenic traffic free course through woodland and canal paths and a themed medal for finishers.

A guided trail run of about 10 km around Llangollen visiting Castell Dinas Bran and the Abbey and returning via the canal. The group keeps a steady pace with regular regrouping stops; members may enter for free while standard entry is £19.5..

October 2026

Women only night trail in County Wicklow on 2 October 2026. The fully marked 7.00 km route follows the Sugarloaf Way, requires a head torch and trail runners, and entry fees will be donated to Bray Women's Refuge.

The Backyard Ultra - Isle of Man will take place in Saint John's on Friday 2 October 2026. You can run 4 miles.

Uphill only 10 km from Ruthin to Moel Famau finishing above 550 m, featuring varied trails, a steep final gully and an optional bus return to Ruthin.

A six-hour timed trail event in Cuerden Valley featuring 5 km laps, half and full marathon options, on-course aid, medals, and a donation to the park.

A 32 mile trail through the Cambrian Mountains from Camp Plas near Dolanog, capped at 100 runners and fully marked with checkpoints and a 14 hour cut off. The weekend includes on-site camping, catering, live music and lakeside activities.

Trail half marathon around Rivington with start and finish at Rivington and Blackrod High School, organised by Chorley Women FC on 10 October 2026.

A coastal 10 km trail run in Howth, Dublin on 10 October 2026 with an age limit of 16 and an entry fee of €42 plus fees.

A 5K obstacle course at The Cheshire County Showground with 12+ obstacles where participants fundraise for Islamic Help water projects.

The Twin Peaks Race in Aberystwyth challenges runners with ascents of both Pen Dinas and Constitution Hill on an 11.7 km route. A shorter junior race on the promenade is also available. The event features varied terrain and finishes with a..

Canicross at Pennington Flash Country Park with marked lakeside and woodland routes, short and long distances, and on-site parking and café.

Trail running at Loggerheads Copuntry Park with 6 km, 6 km Canicross and 12 km options, fully marked courses and no time limits.

An untimed 5k and 10k adventure run at Lyons Lane Motocross LTD in Shrewsbury on October 17, 2026. The course uses a MotoX track and includes brook crossings, hill climbs, a mud crawl and a water slide finish.

Cadair X is a 13.1 mile mountain half marathon with 1165 m of ascent that climbs to the 893 m summit of Cadair Idris. The marked route crosses woodland, glacial lakes and technical summit terrain and a GPX file is available.

Blindfolded navigation challenge in Chester where participants are dropped at unknown locations and must find their way back over 6, 10 or 15 mile options.

A 50 km trail race around Llyn Brenig from Corwen, using marked footpaths with GPS navigation, checkpoints and mandatory kit requirements.

An 8 hour looped running event in Delamere Forest where participants complete repeated 6.08 km laps on mixed gravel and woodland trails with timing and a medal.

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