Brecon to Cardiff Classic

Nantgarw, United Kingdom • 1 Mar 2026

The Brecon to Cardiff Classic is a 70-kilometer (43-mile) ultra running race held annually along the scenic Taff Trail from Brecon in the Brecon Beacons National Park to Nantgarw near Cardiff. Now in its 12th year, this fully marked, one-way race features diverse landscapes, starting with dramatic mountain scenery, waterfalls, and reservoirs, then transitioning to areas reflecting Wales’s industrial heritage. The route follows historic railway and canal paths, with the first 30 km on footpaths and forestry trails, then shifting to off-road cycle paths. The event includes six checkpoints, drop bag transport at the halfway point, electronic timing, live GPS tracking, and bus transport from the finish to the start. The finish area offers parking, facilities, and nearby amenities. Visit the organization's website for the most recent information.

Race information

70 km
70k Ultra
Visit the organization's website for the most recent information.
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