Ready to lace up your trainers and take on an epic challenge in 2026? Wales is the place to be! We’ve rounded up 35 exciting running events and adventure races that are now open for registration. Whether you’re a seasoned marathoner or a beginner looking for a new hobby, there’s something here for you.
Kick off your year with the Chepstow Running Festival in January, featuring races from 5km to a half marathon all within the scenic confines of Chepstow Racecourse. Prefer coastal views? The Llanelli Half Marathon & 10K in February has you running along the beautiful Millennium Coastal Path in Carmarthenshire.
If endurance is your game, the Trails & Tarmac Winter Back Yard Ultra in the Black Mountains offers an unparalleled experience. Prove your stamina with this last-person-standing race or check out other challenging terrains like the Caerphilly Trail Races on the same day!
March into spring with the picturesque Jones O Gymru Anglesey Half Marathon and the Great Welsh Marathon. Discover the stunning vistas of North Wales while pushing yourself towards a new personal best.
As summer rolls around, experience the adrenaline rush of multi-terrain challenges like the Snowdonia Trail Marathon or take on the radical climbs at The Beast of the Beacons. Prefer a seaside setting? The legendary Wales Marathon offers an unforgettable route through the Pembrokeshire Coast National Park.
Finish the year strong with iconic events like the Cardiff Half Marathon and Conwy Half Marathon—both known for their breathtaking scenery and incredible community support.
From flat, fast courses ideal for PBs to rugged trails for thrill-seekers, these events cover it all. With such a variety to pick from, there’s no excuse not to get involved. Sign up for these exciting races today and turn 2026 into your ultimate fitness adventure! 🏃♂️🏞️🥇