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Trail Running Calendar near Ystrad Mynach 2026-2027

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Explore the top trail runs near Ystrad Mynach for 2026-2027! We've gathered 89 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

September 2026
A fell running race in Caerphilly on 26 September 2026 featuring a 9.5 km course with 336 m of climb, partially marked and with a short walk from parking to the start.
Trail race at Margam Country Park offering 5 km and 10 km routes through woodland with castle views. The event features chip timing, water stations, a finisher's medal and parking included with entry.
A measured forest trail half marathon in late September with way-marked, marshalled routes, water stations, chip and gun timing, medals for finishers and trophies for category winners.
A coastal 10 km race along the North Somerset shoreline, passing Black Nore Lighthouse and Redcliffe Bay. The mixed terrain route includes grass, mud, rocks and tarmac with undulating sections and a seafront finish.
October 2026
A mixed terrain 9 mile loop in Bridgend where runners complete as many laps as possible within an 8 hour time limit.
A 7 hour Time Challenge at Dare Valley Country Park with flexible distances from 3 km to ultramarathon options. Finishers receive a themed medal, distance pins and refreshments including doughnuts and ice cream.
A fell race on 3 October 2026 with a 3.2 km route and 305 m climb near Storey Arms, included in the South Wales Series; entry on the day £2.
Trail and ruck event at Ashton Court Estate on Oct 4, 2026 offering 6k, 10k and half marathon distances with Pro and Open categories and GORUCK backpacks provided.
A 55 km forest ultra on 10 October 2026 at Beechenhurst, featuring technical single track, open river stretches, on-course aid and a separate canicross category.
Trail race in an Area of Outstanding Natural Beauty around Biblins Youth Campsite, Ross-on-Wye covering approximately 6 miles or 10k on mixed trails and single track. Entry is limited to 200 runners and prizes include individual and team awards.
A ridge fell race in the Black Mountains, 11.7 km with 492 m ascent, run under WFRA rules for runners aged 16 and over.
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 32 km, 1800 m mountain run on Pen y Fan with three summit ascents and options for unweighted or 16 kg weighted categories; navigation is self managed.
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 mountain ultra across the Brecon Beacons with five checkpoints, mandatory kit and 3750 ft / 1143 m of ascent.
Multi terrain races and a 12x5K Countdown Ultra take place at Margam Country Park on 8 November 2026, with separate individual and canicross races.
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