Wales
Trail Running Calendar Wales 2026-2027
Explore the best trail runs in Wales for 2026-2027! Our updated list features 176 exciting trail runs across the region. Find your next trail run in Wales below and join the trail community at these great events!
August 2026
Point-to-point ultras along the Cambrian Way into Cardiff, offered as 44- and 33-mile options with self-navigation, live tracking, indoor aid stations, and on-route support.
An approximately 8 km fell race in North Pembrokeshire with about 320 m of climb and a partially marked course. Junior races run in several age categories and entry fees are modest.
A 11.3 km fell race with 350 m ascent near Mynachlog-ddu and Rosebush. The partially marked course requires navigational skills and experience. Entry is £5 pre-entry or £7 on the day and includes tea and cake.
A hill race near Porthmadog covering 7.2 km with 564 m of ascent, partially marked and requiring navigational skills and experience. Entry is day only for £5 and teams may enter free.
A fell race near Machen covering 7 km with 365 m ascent, held with on the day entry and registration at Machen Welfare Ground.
A mountain fell race at the Cilcain Show in the Clwydian Range, featuring a 7.4 km course with 380 m ascent and linked WA and North Wales championship races.
September 2026
Coastal ultra events on Anglesey offering a 130-mile clockwise island circumnavigation and a separate ~47-mile coastal route along the Isle of Anglesey Coastal Path.
A navigational endurance march in South Wales offering a full 64 km route and a 32 km half with self navigation and guided group options.
A multi-terrain off-road race of about 4 miles in Shotton on 4 September 2026, with pre-entry fees (£10, £8 affiliated), prize categories by age, a minimum age of 17, and a 200-person entry limit.
A new 15 mile trail event in September 2026 on the Rhymney Valley Ridgeway Walk, with 2,267 ft of ascent, mostly off-road terrain, one fully stocked checkpoint and organised entry support from Rudry to Parc Penalta.
A self navigation 102 mile ultramarathon across Snowdonia with live GPS tracking, 11 checkpoints, mandatory mountain kit and a 42 hour cut off.
Point to point trail races from Barmouth beach into Snowdonia, offering 12K, 25K and 54K options with aid stations, chip timing and a cupless policy.
Waun Fach on 6 September 2026: a 11.2 km, 610 m ascent fell race on a classic horseshoe route with marshals, limited to 50 entries; fee covers parking and light refreshments.
A 9 mile fell race with 2,800 ft ascent visiting Tal y Fan and Moel Lus, based at The Gladstone in Dwygyfylchi; entry is limited to 100 competitors.
A six day 380 km multi stage ultra across the spine of Wales from Conwy Castle to Cardiff Castle with mandatory maps, trackers and overnight camps.
A 24 hour loop race at OnePlanet Adventure in Llandegla where individuals or two person teams complete as many 3 mile laps as possible on forest trails.
Guided mountain run across the 15 Welsh 3,000 ft peaks in Snowdonia, about 50 km with 4,000 m ascent, includes transport, guide and support; this is a non-race event.
Run as far as you like at Alice in Runderland, a timed multi lap event at Parc Taf Bargoed with flexible start times and on course support. Choose from one lap up to marathon and earn a bespoke finisher medal.
An 8 km mountain race over the three peaks of the Eifl near Pwllheli with about 490 m of ascent. Main race for over 16s with entry on the day £10; junior races are held with a £3 entry.
A partly marked fell race from the Raven Inn, covering 11.25 km with 445 m ascent. Day-entry only at £5, minimum age over 18, and participants should allow about 15 minutes to walk to the start.