Logo

Cadair X

Tywyn, United Kingdom • 10 May 2025

Cadair X is a challenging half marathon event organized by WESWIMRUN, set against the stunning backdrop of Cadair Idris in Wales. The route spans 13.1 miles, featuring a significant elevation gain of 1165 meters, and comprises 65% trail, 25% mountain path, and 10% tarmac. Participants will navigate through ancient woodlands, glacial lakes, and historic trails, culminating at the summit of Cadair Idris. The race emphasizes sustainability, with no disposable cups used. It is recognized as an UTMB Index Race, attracting runners seeking both adventure and competition in a breathtaking natural setting. Visit the organization's website for the most recent information.

United Kingdom Wales Tywyn

Race information

Website
UTMB 20K
13 mi
13.1 Miles
Visit the organization's website for the most recent information.
Trail runs nearby

Aberdyfi Half Marathon

Aberdyfi

Experience a trail run through the UNESCO Dyfi Biosphere and along the Wales Coast Path. This event features a half marathon and a two lap marathon with 850m of elevation gain in the stunning Snowdonia National Park.

UTMB Index

She Ultra

Pwllheli

A single-distance 50 km ultramarathon in Pwllheli on 11 April 2026, with a published entry fee of £74 plus booking fee. The event enforces a no crew, no pacers policy and requires mandatory kit and medical disclosure.

ITRA Points

Trawsfynydd Lake Race

Trawsfynydd

An 8.6 mile multi terrain loop around Trawsfynydd lake in Snowdonia, run under Welsh Athletics rules. Proceeds support the volunteer South Snowdonia Search and Rescue team; chip timing, marshals and water stations provided.

Guided Trail Run - Penllyn Forest

Lake Vyrnwy

Join a friendly guided trail run through Penllyn Forest on 19 April 2026, taking in rural views between Bala and Lake Vyrnwy. About 14 km on quiet forest tracks with a relaxed group pace and regular stops to enjoy the scenery.