Trail Running calendar near Caernarfon 2025-2026

We have found 78 Trailruns within 80 miles of Caernarfon. See below where and when you can find the races.

Tackle a scenic 32 mile 50 km trail ultra through the Cambrian Mountains with views toward Snowdonia and the Shropshire Hills. Camp Plas offers an eco friendly weekend with camping, sauna, yoga and strong on course support for 100 runners.

Event details Breidden Hills is an off-road fell race organised by Mercia Fell Runners Club and held at Criggion Village Hall, Criggion, SY5 9AY. The race distance is 11.5 km with total ascent of 790 m. Entry is by pre-registration only; th..

Run the iconic Twin Peaks of Pen Dinas and Constitution Hill from Aberystwyth bandstand, a scenic mixed terrain race that blends road sections with off road path climbs. Junior and senior routes make it a family friendly challenge.

PFW Running's Cuerden Charity Challenge is a 6-hour trail running event held at the Cuerdon Valley Visitor Centre in Cuerden Valley Park, near Preston. Participants tackle a 5k undulating off-road loop with amazing views and may complete as..

Loggerheads Autumn Trails is an exciting running event featuring longer versions of popular 5k and 10k races, set in the scenic Loggerheads Country Park. Participants can choose from a 14k race, which consists of two loops of a 7k course, o..

The Brenig Way 50K Trail Race is a challenging ultramarathon that covers 50 kilometers through remote upland scenery in Wales. Starting in Corwen, participants follow a marked footpath along country lanes, forest tracks, and riverside paths..

Run a spooky night trail through Delamere Forest under reflective markers; fancy dress is encouraged for the Spooky Halloween theme. Choose 10k or Half Marathon and tackle muddy trails by head torch in this fun, atmospheric night race.

Event Spooky Run is a Halloween-themed guided social run on 31 October 2025 in Oswestry, United Kingdom. The event is organised by Adrenaline Sporting Events and has an entry fee of £10. The advertised distance is 6 km and participants are..

November 2025

Run scenic undulating trails through Delamere Forest on 2 November with 21K and 42K options. Expect forest tracks, Sandstone Trail climbs and a two lap marathon that counts towards the UTMB Index, plus medals, photos and post race goodies.

UTMB Index

Event details The Three Counties Trot is a trail race organised by Billinge Running Club on Saturday 8 November 2025. The course distance is 5 miles and starts at the Janet Lalley fields, across from Tontine Park. Event headquarters and reg..

Warrington Way is a 40-mile ultramarathon starting and finishing in the Cheshire village of Lymm. Runners follow a route on tracks, footpaths and lanes to circumnavigate Warrington anticlockwise. The course is waymarked, but participants mu..

Enjoy autumn trails at Upton Country Park with options from a 1.5k mini to a half marathon across scenic, muddy and undulating off road loops. Chip timing, finisher medal and headband make this a fun, family friendly day out.

Run scenic forest and coastal trails around Newborough Forest and Llanddwyn Island in a 10k or half marathon, with stunning views of the Llyn Peninsula and Eryri. Event village, live timing and family friendly finishes support Alder Hey Chi..

Join the World Diabetes Day Run on 14 November at Stanley Park in Blackpool for a 6 hour timed challenge supporting Breakthrough T1D. Run as many 3.1 mile laps on mainly flat paths as you like, enjoy on course snacks and a post race gift.

Take on the Slate Trail Ultra in rugged Snowdonia, based at Porth Penrhyn in Bangor. Pick the 145 km or 88 km route for epic climbs, stunning slate country and full on course support across a challenging November weekend.

UTMB Index

MoRunning Liverpool in Croxteth Park on 15 November supports Movember and men's health with 5k, 10k, half and 1.5k. Flat mixed path and trail course, timed results, finisher medal and prizes for best dressed and fastest Mo.

The Guided Trail Run in Dolwyddelan offers participants a scenic 10km route beginning in the charming village. The run features a leisurely start along the river, followed by a climb to Ty Mawr, where runners can enjoy stunning views of the..

Event overview Callow is a confirmed fell race scheduled for Sunday, 16 November 2025. The course is an AS category fell race of 8.1 km with 762 m total ascent. The route starts near Little Stretton, includes four steep valley climbs, and f..

Join the Lancashire Loop Trail Run in Blackpool on scenic loops past Marton Mere, Stanley Park and Blackpool Zoo with views of Blackpool Tower. Distances from 10K to ultra, bespoke medal and post race goodies for all finishers.

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/finis..