Trail Running calendar near Tywyn 2025-2026

Run the classic Welsh 3000s across Snowdonia's 15 peaks in an epic guided mountain run covering about 50 km and 4,000 m of ascent. Enjoy expert mountain leaders, support vehicle and food stations as you tackle this iconic route.

Brutal Extreme Triathlons presents multiple intense triathlon races over four days in stunning Llanberis. Test your endurance amid dramatic Welsh mountain scenery in mid September 2026 with fellow athletes who crave a true challenge.

Challenge yourself at the Trails & Tarmac Backyard Ultra in Crickhowell's Black Mountains on 19 September, tackling 4.17 mile loops split between trail and tarmac. Run hourly laps until one runner remains and hit 32 miles to claim a medal.

Join the 361° Abersoch Half Marathon along the scenic Llyn Peninsula, finishing with a memorable final kilometre on Abersoch Beach. Enjoy a festival finish with a medal, tech tee and lively music as part of the Abersoch Triple Crown.

Take on a 6.7 km loop at Wyre Forest with Lone Wolf Birmingham, running one lap each hour and as many laps as you like up to 24 hours. Wooden trophies and medals await finishers, with a cafe and relaxed event atmosphere.

Race scenic trails at Margam Country Park with castle views on a 5K or 10K loop. Fully marked and marshalled with chip timing, water stations and a finisher medal, ideal for new and experienced runners.

A challenging 10 km uphill only race from Ruthin to the Jubilee Tower on Moel Famau, finishing above 550 m with sweeping hilltop views. Open to walkers and hill runners, it pairs a tough ascent with a memorable mountain finish.

Twin Peaks & Ras Consti in Aberystwyth is a scenic coastal race mixing paths, roads and rocky climbs. Seniors run 11.7 km with climbs of Pen Dinas and Constitution Hill while juniors race shorter routes finishing on the promenade.

Tackle the Brenig Way 50 km trail, a scenic endurance run from Corwen to the dam at Llyn Brenig through forests, riverside paths and technical climbs. Electronically timed with GPS trackers and aid stations, it is a rugged yet well supporte..

Creepy Crawl on 21 October 2026 at Pengethley Manor offers 5k to ultra distances on a challenging off road loop through hills and two vineyards. Ideal for runners and walkers craving a scenic, gritty test of endurance.

Night Descent 32 Ultra is an overnight, staged 32 mile challenge around Bridgend on 14 November 2026, split into four progressive stages. Prepare for trail night running with required headlamp, reflective kit and aid stations between stages..

Tackle the Nightmare Before Xmas Trail half marathon on 19 Dec 2026 a festive, muddy trail with climbs, forestry and scenic views. Only 70 entrants, plus a finisher medal, mince pies, hot drinks and a best fancy dress prize.