Logo

Brecon to Cardiff Classic

Nantgarw, United Kingdom • 1 Mar 2026

The Brecon to Cardiff Classic is a 70-kilometer ultra running event held annually in Wales, following the scenic Taff Trail from Brecon in the Brecon Beacons National Park to Nantgarw near Cardiff. The fully marked, one-way course showcases diverse landscapes, starting with dramatic mountain scenery, waterfalls, and reservoirs, then transitioning to areas reflecting Wales’s industrial heritage. The route includes footpaths, forestry trails, and off-road cycle paths, with six well-stocked checkpoints and a halfway drop bag point in Merthyr. The event offers electronic timing, live GPS tracking, and transport from the finish to the start. Facilities at the finish include parking, showers, and refreshments, making it a classic and popular ultra running challenge. Visit the organization's website for the most recent information.

United Kingdom Wales Nantgarw

Race information

Registration
70 km
70k Ultra
Visit the organization's website for the most recent information.
Trail runs nearby

Brecon Beacons 51k

Talybont-on-Usk - 23 mi from Nantgarw

The Brecon Beacons 51k event, part of the RunThrough UK Brecon Beacons Trails in August 2025, offers runners a challenging ultra-distance trail race in the scenic Brecon Beacons, starting from Talybont-on-Usk. Participants can choose from 10K, 24K, or 51K distances, each featuring rugged trails, cli..

UTMB Index

Crook Peak Cake Race

Cross - 26 mi from Nantgarw

The Crook Peak Cake Race will take place in Cross on Wednesday 13 August 2025.

Beast of Llangattock

Llangattock - 20 mi from Nantgarw

The Beast of Llangattock is a challenging trail running event held at Park Farm, Llangattock, Wales, offering four distances: 10km, 10 miles, 20 miles, and a 32-mile ultra. The course features stunning panoramic views of the Black Mountains, Sugar Loaf, and the Brecon Beacons, with varied terrain in..

Beast Of Bryn

Bryn - 19 mi from Nantgarw

The Beast of Bryn is a challenging trail running event held in Bryn, Port Talbot, South Wales, organized by the Bryn Residents Action Group (BRAG). Set in the scenic Afan Forest Park, the race offers two distances: a 6.5-mile (10.5 km) route with 288 meters of climb and a longer 10.5-mile (17 km) co..

Crickhowell 10km

Crickhowell - 21 mi from Nantgarw

The Crickhowell 10km is a scenic running event held near Crickhowell, Wales, within the Brecon Beacons National Park. The race features a flat, out-and-back course along the Brecon & Monmouthshire canal, starting and finishing at Llangattock, with a turnaround point at Gilwern. Designed for runners..

Black Cattle Ultra Gwartheg Duon

Cardiff - 6 mi from Nantgarw

The Black Cattle Ultra Gwartheg Duon is a challenging trail running event held in South Wales, starting at Cardiff Harlequins RFC. Participants can choose between two ultra distances: 44 miles from Llanthony Priory or 33 miles from Abergavenny. Both routes follow the scenic Cambrian Way to Cardiff,..