Nantgarw
Trail Running Calendar near Nantgarw 2026-2027
Explore the top trail runs near Nantgarw for 2026-2027! We've gathered 96 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
Timed multi distance event on a 5.3 km Cardiff Bay lap with options from 5 km to ultra, a seven hour limit and flexible start times.
May 2027
A 5k obstacle course at Coopers Field, Bute Park, Cardiff, with tarmac paths and grassy sections that can get boggy after rain. The event raises funds for Cancer Research UK and uses staggered wave starts; participants must be 13 or older.
A Welsh trail event with 100 mile and 100 km routes along Offa's Dyke Cambrian Way and Beacons Way, supported by aid stations and volunteer crews.
A 50-mile trail ultra near Minehead on 8 May 2027 with about 7,337 ft of ascent, six aid stations and varied coastal, woodland and moorland terrain.
A trail marathon around Cardiff with about 1,300 m of climbing, mixed off-road terrain, partial self-navigation, checkpoints and support during the Radyr and Morganstown Festival.
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.
Mountain marathon and 10 mile trail race across the Pen y Fan range at Parkwood Outdoors, Merthyr Tydfil, with marked checkpoints and variable mountain terrain.
Gwyn Matthews Rhondda Rollercoaster offers 26.5 and 16 mile routes across the Rhondda Valleys with checkpoints, refreshments, and a completion certificate.
Trail races at Margam Country Park on 23 May 2027 with 5 km, 10 km and half marathon courses, chip timing, finishers' kit and canicross options.
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.
June 2027
Military themed D Day series run at Parc Taf Bargoed with 5.3 km laps; choose distances up to ultra within a seven hour time limit and earn commemorative medals.
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.
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.