Machen
Trail Running Calendar near Machen 2026-2027
Explore the top trail runs near Machen for 2026-2027! We've gathered 123 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.
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.
Off road races around Cheddar Gorge and the Mendip Hills on 13 June 2027, from 1 km to marathon, plus an Omnium and UTMB Index Half and Marathon.
A five-mile mixed-terrain race through Porthkerry Country Park with varied surfaces, two climbs, age-group prizes and a 1 hour 15 minute time limit.
Pretty Muddy 5k at The Downs in Bristol is an obstacle course on mainly grassy terrain with a 28 m ascent, organised by Cancer Research UK to raise funds for research.
Race for Life at The Downs in Bristol offers 10k and 5k routes on mainly grassy loops, timed by chip and run to raise funds for cancer research.
Inflatable obstacle course and fun run at Heath Park Cardiff on Saturday 26 June 2027 with distance options from 2.5k to 15k and family entry rules.
Local SBOC club league orienteering event at Merthyr Mawr West near Swansea on Wed 30 June 2027, family and newcomer friendly with coaching available and no dogs allowed.
July 2027
A 10 hour loop endurance challenge on Mynydd Troed with roughly 2.7 mile marked laps, about 1,000 ft ascent per lap, solo, pairs and four‑person team entries.
A 16.5 kilometre mountain race in Llanfrynach on 10 July 2027 with 670 m ascent, WFRA BM classification, a 75 minute summit cut off and mandatory map and compass.
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 the Wye Valley Greenway and through the lit Tidenham Tunnel, with events from 500 m Colourburst to a full marathon.
A 100 mile self-navigation ultramarathon across the Brecon Beacons with 6143 m ascent, 10 checkpoints, strict qualifying criteria and a 40 hour cut off.
A navigation challenge in Cardiff where participants are blindfolded, dropped at an undisclosed location, and must find their way back without maps or GPS.
A two day trail ultramarathon in the Brecon Beacons near Abergavenny with distances up to 100 miles, on site camping, and UTMB index status.
A self-navigated 100 km across the Brecon Beacons with 3178 m ascent, six staffed checkpoints, strict qualifying criteria and a 24-hour cut-off.