Trethomas
Trail Running Calendar near Trethomas 2026-2027
Explore the top trail runs near Trethomas for 2026-2027! We've gathered 102 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
A 12km canitrail and trail run at Halo Ogmore Valley Life Centre in aid of PAPYRUS on 13 September 2026, entry £26, dogs welcome.
A 12 hour Backyard Ultra on a 4.2 mile loop near Crickhowell in the Black Mountains. The final lap is run in reverse as a sprint to decide male and female winners; medals are awarded for 32 miles or more.
A five mile mixed-terrain race through Porthkerry Country Park with varied surfaces, two climbs and inclusion in the South Wales Regional Trail Championship.
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 trails half marathon through the Forest of Dean on 27 September 2026, organised by the Rotary Club with way-marked routes, chip timing and proceeds to charity.
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.
A trail half marathon in the Quantock Hills with a 21.2 km route and 839 m ascent, limited to 300 runners and featuring chip timing, waymarked route and on course feed stations.
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 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.