Trail Running calendar near Caernarfon 2026-2027

An 8 km mountain race over the three peaks of the Eifl near Pwllheli with about 490 m of ascent. Main race for over 16s with entry on the day £10; junior races are held with a £3 entry.

A partly marked fell race from the Raven Inn, covering 11.25 km with 445 m ascent. Day-entry only at £5, minimum age over 18, and participants should allow about 15 minutes to walk to the start.

A half marathon trail race across the Clwydian Hills to Moel Famau at sunset, with aid stations, timing checkpoints and a 120 runner limit.

A countryside challenge from Wistanstow offering 12, 18 and 26 mile routes through Clun and Bishop's Castle with checkpoints, maps and a finish meal.

A 100 mile ultramarathon along the Cambrian Way from Rhayader, Wales, on 12 September 2026, with live GPS tracking, on-route support and a finisher medal.

A one lap 10K trail run through Yarrow Valley on 13 September 2026, routed along woodland paths and riverside trails with crossings of the River Yarrow. Based at the Flaming Grill Pub, entry is listed at £16 and every finisher receives a me..

Defeat Delamere is a forest run on 13 September 2026 at Delamere Forest, Frodsham, offering 5k, 10k, 16k and a junior race. Entries include race packs, finisher medals, t-shirts and post race hydration.

Women only 10 km event at Beacon Country Park with chip timing, marshals, medical cover and on course ambassadors, limited to 250 places.

A midweek multi-terrain race in Wallasey, part of the Wirral Multi-Terrain League, with senior races of 6.5 to 8 km and junior races of about 2 miles.

Multi-distance triathlons around Llyn Padarn with a mountain section on Snowdon. Solo and team entries available, with mandatory support crew for double and triple distances and compulsory safety kit for all athletes.

A short beach race along Abersoch beach on 19 September 2026 that mixes hard and soft sand and several groynes. Finishers receive a zinc alloy medal and winners earn cash prizes including a course record bonus.

Ras Pedol Peris is an AL Welsh fell race in Eryri near Llanberis with full 28 km and half 14 km routes over several mountain summits on 19 September 2026.

A 12-hour last-person-standing obstacle endurance event at Killruddery Estate featuring repeated 5 km laps each hour and a finisher’s medal only for those still standing.

A multi day 286 km mountain race across Wales with solo and team entries, five indoor checkpoints and a 108 hours time limit.

Arrowe Park is the final race in a four‑event Wirral Multi‑Terrain League held across varied surfaces in September.

Trail running event in Bray, County Wicklow on 26 September 2026 with races from 10KM to 80KM, part of the EcoTrail series and focused on sustainability.

A point to point 30 miles ultra along the coast from Blackpool Tower to Lancaster Castle that includes a ferry crossing between Fleetwood and Knott End. The event features chip timing, aid stations and mandatory kit checks.

A community-hosted BM fell race in Glyn Ceiriog covering 11.6 km with 425 m ascent, entry on the day, minimum age 18, and post-race soup and cakes at the centre.

A fully waymarked, supported sea to summit ultramarathon from Caernarfon Castle to Bron y Feds Uchaf covering 29 miles and 5600 ft of ascent.

Trail runs at Delamere Forest on 27 September 2026 offer a two-lap half marathon and a one-lap 10K over technical wooded trails, with chip timing, aid stations, canicross options, and eco-minded event measures.