Running Events in Cardiff, Wales 2025-2026

Discover a variety of running events in Cardiff, Wales, ranging from beginner-friendly fun runs to challenging marathons. Participants can enjoy scenic city routes and nearby natural landscapes while taking part in community-focused races and major athletic festivals.

Cardiff hosts an exciting selection of running events from 2025 to 2026, offering both local city races and opportunities to explore the scenic landscapes of Wales. Short-distance events such as 5k and 10k runs foster a fun, family-friendly atmosphere, perfect for engaging with the local community. Notable series include the Winter Warmer races, ideal for those with a New Year's fitness goal. Longer challenges are also on the calendar, such as the Cardiff Half Marathon, which draws approximately 25,000 participants and features routes past iconic landmarks like Cardiff Castle and Penarth Marina. For runners seeking trail and ultra experiences, the nearby Brecon Beacons National Park provides rugged terrain and stunning views with events organized by Blade Runner during both summer and winter months. Other highlights include themed charity runs, seasonal celebrations, and multi-distance race festivals throughout the year. Select events require booking through official channels.