Trail Running calendar near Cardiff 2026-2027

We have found 396 Trailruns within 80 miles of Cardiff. See below where and when you can find the races.

An obstacle 5k at Worcester Racecourse on 18 July 2026 with mixed grass and pavement sections. Participants must be 13 or older, there is a £50 minimum fundraising target, and onsite facilities include toilets and refreshments.

A trail fun run at Myncen Farm on 19 July 2026 organised by Running Events Devon. One lap across fields and tracks, limited to 64 entrants, suggested age from 4 years with adults required for under 10.

A one lap trail fun run on private farmland near Blandford Forum on 19 July 2026 with an option to camp that weekend. Minimum age is 4 years and children under 10 must be accompanied by an adult.

A trail run at Myncen Farm near Blandford Forum on 19 July 2026, the Apple Plod 10K.ish uses a two lap undulating course across farmland with a 2.5 hour cut off and limited entry places.

Multi-distance runs along the Wye Valley Greenway, including a long lit tunnel section. Mostly flat routes on former railway track with feed stations, clear marking and event medals for 5 km or longer.

Two trail races in Aymestrey, Herefordshire, both climbing to the Iron Age hillfort at Croft Ambrey. Routes are fully marked with water stations and a separate juniors 2 km race with medals.

A traditional off road fell race of about 4 miles and 1000 ft of ascent on Exmoor, running from Bossington National Trust car park to Selworthy Beacon and back. Self navigation is required and prizes are awarded in gender and age categories..

A new 100 mile team relay in South Devon on 19 July 2026, split into 16 legs from 5 km to just under 16 km. Teams of 10 to 16 runners compete for awards while the event raises funds for two local charities.

A Trail 10k at Llys y Fran Lake with varied terrain, lakeside and woodland sections, chip timing and a finisher's medal. The race is the second event in the 2026 RTT Series and includes marked routes and water stations.

A new 10 km trail from Ross on Wye along the River Wye with off road terrain and riverside wildlife. Entry is £14.99 via PayPal, minimum age 15, and all finishers receive a bespoke medal.

Carn Ingli Killer is a 5.54 km fell race with 315 m climb on a partially marked course requiring navigational skills and experience; registration is opposite Long Street car park and entry is £3 on the night.

A 100 km self navigation ultramarathon across the Brecon Beacons with 3178 m of ascent, following the Beacons Way. Entrants must meet qualifying criteria including prior 50 mile ultramarathon experience and map and compass skills, places ar..

A 100 mile self navigation ultramarathon across the Brecon Beacons on 25 July 2026 with 6143 m ascent, live GPS tracking and 10 checkpoints. Entrants must meet experience and kit criteria and places are limited to 250.

A multi-distance trail running event in the Brecon Beacons near Abergavenny on 25–26 July 2026, offering routes from 12 km to 110 km with marked courses, on-course support, camping and UTMB Index classifications.

A Britney themed 7 hour Time Challenge at Dare Valley Country Park offering distances from 3 km up to ultra and 50 km. Aid tables, medals and goody bags are provided, with free parking, toilets and a cafe on site.

A basecamp event at Dunster on 25 July 2026 offering a 50 km loop with about 1600 m of climb plus 25 km and 10 km options, all supported with marquee rest stops, GPS tracking, catering, medical cover and camping.

A fell race at Cwm, Ebbw Vale covering 9.3 km with 549 m of climb. Partially waymarked, the route includes an anticlockwise loop around Y Domen Fawr and is part of the South Wales Series.

Trail runs on 26 July 2026 from Storey Arms to the Pen Y Fan summit, offered over 5 miles or 13 miles with chip timing, marshalled routes and specified mandatory kit for each distance.

A circular half marathon trail run on the Ridgeway that visits Ashdown House and the original White Horse Hill. The route is described as undulating and the event is held under UK Athletics rules with a Trail Running Association permit.

Timed laps on a 2.62 mile out and back canal route with flexible distance options from 5 km up to ultra and a seven hour time limit. Both in person and virtual entries receive a physical medal.

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