Tongwynlais
Trail Running Calendar near Tongwynlais 2026-2027
Explore the top trail runs near Tongwynlais for 2026-2027! We've gathered 100 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
June 2027
A roughly 6 kilometre mixed-surface race through Blaise Castle Estate in Bristol, held annually in early June. The event has individual and team prizes, a minimum age of 16, and facilities based around the clubhouse.
An off-road race series around Cheddar Gorge and the Mendip Hills with distances from 1 km to marathon and an Omnium option; half and marathon hold UTMB index status.
A Pretty Muddy 5k at The Downs in Bristol with grass start and finish, mixed terrain and obstacles to climb, crawl and slide. Staggered wave starts apply and the event supports Cancer Research UK with a minimum fundraising target.
An untimed inflatable obstacle course in Cardiff on 26 June 2027 offering 2.5k to 15k lap distances, inflatables, music zones, hydration and a finisher medal.
July 2027
Trail races on the private Merthyr Mawr Estate with a 12K, half marathon and marathon across dunes, river crossings and the Glamorgan Heritage Coast.
Flat races along former railway and riverside paths through the Wye Valley, featuring long tunnel sections, multiple feed stations and a choice of fun runs, 10km, half and marathon.
A 100 mile route across the Brecon Beacons on 24 July 2027 with 6143m ascent, 10 checkpoints, compulsory map and compass navigation and live GPS tracking.
An urban navigation challenge in Cardiff where participants are blindfolded, dropped at an undisclosed location and must return across 6, 10 or 15 miles without maps or GPS.
Multi-day trail ultramarathon in the Brecon Beacons near Abergavenny, offering races from 12 km up to 100 miles on rugged routes and UTMB indexed categories.
A 100 km race across the Brecon Beacons with 3178 m ascent, six checkpoints and a 24 hour limit; map and compass navigation plus prior ultramarathon experience are required.
Coastal trail races along the Wales Coast Path with 100 mile, 50 mile and 50 km options finishing at the Norwegian Church in Cardiff Bay.
August 2027
A 35 mile ultra trail from Chepstow Castle to Monmouth and back via Offas Dyke, passing Tintern Abbey, a 1 km tunnel and finishing with live music.
October 2027
SAS Endurance in Talybont-on-Usk on 1-2 October 2027 offers full 64 km and half 32 km navigational routes with guided and self navigation options.
July 2028
A single day ultra of about 39.7 miles along National Cycle Route 8 from Glasbury to Merthyr Tydfil. Limited field, mandatory kit and 4.0 mph cut offs; finishers receive an Afanc medal and champions receive bespoke trophies.
A point to point 34.8 mile ultra from Merthyr Tydfil to Barry Island following National Cycle Route 8. It is day six of the MTC CYMRUN series and uses preset cut offs based on a 4 mph minimum average speed.