Trail Running calendar near Cardiff Bay 2026-2027

Trail races at Roadford Lake in Devon include a half marathon, 10K, 5K, canicross options and kids races, with chip timing, medals and finish line refreshments. Parking is charged at £5 per car.

Multi-distance trail event on the Dorset Jurassic Coast on 15-16 May 2027 with full 100 km and shorter options, supported rest stops, GPS tracking, camping, and finish in Bridport.

A muddy 5k obstacle course through Singleton Park with mixed terrain, staggered waves, an age limit of 13+, and on-site facilities including toilets and refreshments.

The OTT Marathon will take place in Dol-y-Gaer on Saturday 15 May 2027. You can run between 10 and 26 miles.

Two countryside routes in the Rhondda Valleys, 26.5 miles and 16 miles, starting at Trehafod Community Village Hall with checkpoints, refreshments and a post event meal.

A 10k trail run at Symonds Yat with riverside views and a notable final one kilometre climb. The mostly off road course includes long gravel firetracks and on site coffee and hot food.

Trail running from Sudeley Castle through the northern Cotswolds, with five routes from 7 km to 50 km across bridleways, woodland and open ridge lines.

An untimed inflatable obstacle run at North Somerset Showground on 22 May 2027 offering 2.5 km laps with options up to 15 km and family-friendly entries.

Trail running at Margam Country Park on 23 May 2027 with 5 km, 10 km and half marathon routes, live chip timing, canicross allowed and limited on-site parking.

A multi-stage event at Dare Valley Country Park where runners complete five Pure distances within 24 hours, with separate and combined results. Distances include 5k, 10k, 50k, half marathon and marathon.

A fully supported trail running event in May 2027 along the way-marked Heart of Wales Line Trail from Llandrindod Wells to Craven Arms, offered in **50 miles**, **26 miles**, and **16 miles** distances.

Three trail races of 50, 26 and 16 miles along the final sections of the Heart of Wales Line finishing at the Shropshire Hills Discovery Centre.

The Pretty Muddy 5 km obstacle course at Baiter Park, Poole on 29 May 2027 runs across grass and tarmac with staggered wave starts every 15 minutes. Participants must be 13 or older and there is a minimum fundraising target.

A 24 hour off road trail event on 5 mile loops with solo, pairs and team categories, onsite campsite, parking, caterers and illuminated night routes.

Altered Backyard Ultra at Tockington Manor on 29 May 2027, running hourly 4.126 mile loops up to a 30-loop cap for about 201 km, field capped at 250 runners.

A family sports festival in Salisbury featuring multi terrain races, five a side football, live music and fundraising for prostate cancer on 30 May 2027.

The VOGUM 2027 is an in-person running event in Porthcawl, United Kingdom, organised by Stable Adventures on 5 June 2027; entries are listed as sold out.

The Beyond Bristol Ultra will take place in Bristol city centre on Saturday 5 June 2027. You can run between 25 and 55 kilometers.

A multi distance running event in Bath that features long underground sections through the Devonshire and Combe Down tunnels and a city centre start and finish at Brickfields Park. Races range from 500 m Colourburst to an ultra marathon.

BigSea on the Isle of Purbeck starts and finishes on Knoll Beach and offers Half Marathon, 18 Mile, Marathon and 54k routes across the Purbeck Hills and coastal landmarks. Aid stations provide snacks, water and vegan options and PH 1000 ele..