Gwynedd
Trail Running Calendar near Gwynedd 2026-2027
Explore the top trail runs near Gwynedd for 2026-2027! We've gathered 42 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2026
A 16.1 km fell race around Penmaenmawr with about 594 m of ascent, based at Capelulo Village Hall. The route is partially marked and requires navigation; entry is online with a £12 fee.
A guided 10 km trail run from the Sychnant Pass summit featuring runnable terrain, regular stops and a steady group pace on an upland route.
December 2026
Pre Christmas social run and walk at Conwy Falls offering a leisurely run or walk of up to 2 hours with a cafe gathering afterwards.
January 2027
February 2027
Point to point half marathon across the Llŷn Peninsula from Cwt Tatws, Tudweiliog to Aberdaron on 28 February 2027, chip timed with aid stations and medical cover.
March 2027
A 16.1 km fell race near Llanuwchllyn with 945 m ascent, navigational sections, a junior race, and mandatory full kit.
April 2027
An 8.6 mile multi terrain race around Trawsfynydd Lake on mixed tarmac and trails with 175 m ascent, chip timed and marshalled. Proceeds support South Snowdonia Search and Rescue; open to athletes aged 17 and over.
May 2027
A 115 km multistage race from Abersoch beach to Snowdon and back, combining a 1.5 km sea swim, two 49.5 km bike legs, a mountain ascent and a 1 km beach finish.
June 2027
A long-standing mountain race in Eryri, North Wales, tracing a bee-line route from the coast to the summit of Yr Wyddfa on Saturday 5 June 2027. Long and short courses cross rocky summits, technical ridges and grassy slopes.
Point to point trail marathon across the Llŷn Peninsula to Aberdaron on 12 June 2027, open to runners and walkers with support, checkpoints and a finisher medal.
Mid Wales 200 2027 is a running event in Machynlleth UK on Wed 16 Jun 2027, with published entry information, course maps, photos, reviews and results.
A 51 miles trail and mountain race in Southern Snowdonia featuring Cadair Idris, six checkpoints, mandatory kit and live GPS tracking with a 20 hour cut off.
July 2027
A 300 mile ultra along the Cambrian Way from Conwy, UK, with about 74,000 ft of ascent and up to 7.5 days to complete a nonstop route across central Wales.
Trail races in Eryri with 10K, half, marathon and 58 km ultra, starting and finishing in Llanberis on 10–11 July 2027.
A 15.35 km mountain race on 17 July 2027 with 994 m of ascent; entrants must be over 18 and have mountain running experience.
Mountain races in Eryri's Ogwen Valley offering 40K, 25K and 15K routes from Plas y Brenin with marked trails, on course support and chip timing.
August 2027
A backyard ultra on the Llŷn Peninsula on 6-7 August 2027 where runners repeat a set loop each hour; entry includes support, refreshments, a medal and free camping.