Trail Running calendar near Trethomas 2026-2027

A 32 mile trail run in the Cambrian Mountains based at Camp Plas near Dolanog, capped at 100 runners with fully marked routes, three refuel zones and a 14 hour cut off. The weekend offers on-site camping, local food, live music and outdoor..

A 55 km circular trail in the Forest of Dean that requires GPX navigation across single track, ridges and riverside sections. The event offers staffed aid stations, canicross category, support vehicles and a finishers medal.

A 50-mile LDWA members-only event from Crowcombe Village Hall, run as two loops through the Brendon Hills and the Quantocks to showcase West Somerset in autumn. Pre-selection entry, mandatory kit, a live tracker and qualifying prior distanc..

A 24 hour looped endurance event in Haldon Forest where runners complete one lap every hour and choose distances from 10k to ultramarathon. The final lap decides the winners and all participants receive wooden medals.

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..

A trail race on 11 October 2026 covering about 6 miles through an AONB near Doward and Ross-on-Wye, featuring single track, woodland, riverbanks and a notable hill climb, with marshals, a water station and limited entry for runners aged 17..

MacTuffX Swindon at the County Ground on 11 October 2026 pairs ten Xercises with running across solo, doubles and relay formats, with an 18 plus age requirement and a LITE weight division available.

A ridge fell race on the Cat's Back in the Black Mountains covering about 11.7 km with 492 m of ascent. The route includes steep climbs, technical rocky sections, a trig at the summit, and a ridgeline descent back to the event field.

A community off road running event in Marshfield on Sunday 11 October 2026 with children's and adult distances. Entries support Marshfield Primary School and the routes use temporary access across private land.

Black To The Trails 2026 brings family friendly and longer trail runs to Blaise Castle in Bristol on 11 October 2026, with 1K, 5K and 10K options and free entry for under 16s.

A 7 hour Time Challenge at Dare Valley Country Park offering flexible distances from 3km up to 50km. The event includes themed medals, finishers' goody bags with a vegan option, aid stations, free parking and basic venue facilities.

An untimed 5k and 10k mud and obstacle run at Lyons Lane Motocross LTD in Shrewsbury, featuring brook crossings, hill climbs, a mud crawl and a water slide finish; specific age and supervision rules apply for children.

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.

Join the Aberfan Memorial Run in Merthyr Tydfil to honour the 1966 victims and support the Aberfan Memorial Charity. Choose 5 km to ultra on a scenic tarmac loop along the Taff Trail with flexible start times and official timing.

Roughly 12K trail run on bridle paths and the Imber Range near the Westbury White Horse on 18 October 2026. Limited to 200 places so book early for a bespoke finisher medal and category prizes.

A multi terrain trail event in Stockland, East Devon on 18 October 2026 offering 10 km, 5 km and 3 km routes across fields, lanes and river crossings, with village hall HQ and on site refreshments.

Keynsham Dandy is an off-road race on 18 October 2026 organised by Town and Country Harriers; the roughly 12.5 mile course starts in Keynsham and includes the revived Compton Dando route with a stream, with Race HQ at The New Inn.

Trail running in Wyre Forest on 18 October 2026 with a timed half marathon and a 7.6 mile Super Seven option, finishers medals, category prizes, medical cover and fully marshalled, signed routes.

Trail races at Oxwich Bay with a self-navigated half marathon plus marked 10k and 5k routes. The event is postponed and a new date will be announced.

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.