Llanberis
Trail Running Calendar near Llanberis 2026-2027
Explore the top trail runs near Llanberis for 2026-2027! We've gathered 31 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
June 2027
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.
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.
A fully supported 10K trail in Llanberis on 10 Jul 2027 through Eryri with an event village, chip timing and a family 500m kids fun run.
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.
September 2027
A 45 mile mountain ultramarathon in Snowdonia with about 2800 m ascent, five checkpoints, mandatory navigational kit and entry reviewed by qualification.
November 2027
A winter ultra across the Llŷn Peninsula on 13 November 2027 with individual and four-person relay options, support, checkpoints, refreshments and a finisher medal.
July 2028
A 47 mile ultra from Barmouth to Llanidloes largely on National Cycle Route 8. It is Day 3 of the six day MTC CYMRUN, has a limited field and a minimum pace requirement, and includes tracking and a finisher medal.