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Trail Running Calendar near Nantgarw 2026-2027

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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.

October 2026
Trail half marathon in the Quantock Hills on 4th October 2026, 21.2 km with 839 m ascent, waymarked route, chip timing, feed stations and wooden finisher medals.
Trail running and rucking at Ashton Court on 04 October 2026 with 6 km, 10 km and 21 km routes, Pro and Open categories, and GORUCK Rucker 4.0 gear provided.
A seven hour Time Challenge at Dare Valley Country Park offering distances from 3km to 50km, themed finisher medals and distance pins, on course aid with vegan options, and basic venue facilities including toilets and free parking.
Join the Aberfan Memorial Run in Merthyr Tydfil to honour the 1966 victims and support the Aberfan Memorial Charity. Choose 5 km to ultra on a scenic tarmac loop along the Taff Trail with flexible start times and official timing.
A 20km multi terrain fell race on the Mendips with varied terrain, aid stations and category prizes, supporting local charities.
Night trail run on the Exmoor Coast with 5 km and 10 km routes, summit terrain and optional wooden finisher medals.
A 32 km, 1800 m mountain challenge on Pen y Fan with three climbs via six different routes, offered as an unweighted race or a 16 kg weighted category.
A 9.6 km fell race with 485 m ascent near Abergavenny on 31 October 2026; full WFRA kit is required and parking at the pub is very limited.
Timed lap event at Barry Sidings Country Park with flexible start times, distances from 5 km to ultra on a tarmac out and back course and a medal or no medal option.
November 2026
Approximately 7 mile multi-terrain race from Risca Leisure Centre to Twmbarlwm and back, with about 1000 ft ascent; entries listed via Entry Central.
Mixed trail, mountain, canal and road runs around the Brecon Beacons on 7 November 2026, offered at 50 miles, 26 miles and 13 miles.
A 30 mile trail ultra from Merthyr Tydfil through the Brecon Beacons with four checkpoints, mandatory kit and a six hour cut-off at checkpoint three.
Multi terrain races and a 12x5K Countdown Ultra take place at Margam Country Park on 8 November 2026, with separate individual and canicross races.
Cardiff Cross Challenge at Llandaff Fields on 8 November 2026 features a Gold Label cross country meeting with races from U12 to senior plus primary school events.
Fully marked trail races at Margam Park including a half marathon and a 10k, running through woodland, parkland and the deer park with coastal views; entries include parking, timing, a medal and download photos.
Trail Half Marathon Wales at Margam Country Park on 14 November 2026 features fully marked forest races over 21.1 km and 10.2 km with checkpoints and included parking.
A four‑event night trail series across Somerset in winter 2026/27 with 5 km and 10 km options and bespoke wooden finisher's medals.
Timed lap event in Cardiff Bay offering flexible start times and distances from one 5.3 km lap up to multi lap ultra within a 7 hour limit.
A Movember charity run at Ashton Court Park offering 1.5k, 5k, 10k and half marathon options with chip timing, medals and headbands, mixed path and trail terrain, some hilly sections, and on course refreshments.
The Smurf Run at Dare Valley Country Park is a seven hour Time Challenge on well maintained park paths, with distances from 3 km up to 50 km. Finishers receive themed medals, distance pins and a goody bag with vegan options.
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