The Cardiff Half Marathon 2026 is one of Europe’s largest and most popular road races. Organised by Run 4 Wales, this world-class event offers a flat, fast, and scenic course through the Welsh capital. It attracts tens of thousands of runners, from elites chasing records to charity runners and first-timers. The event is also part of the international SuperHalfs series.

Key Details

• Date & Time – Sunday, 4 October 2026 — race starts at 10:00 AM

• Location – Cardiff, Wales — starting at Cardiff Castle and finishing in the heart of the city

• Event Type – Road race — Half Marathon (13.1 miles / 21.1 km)

• Organiser – Run 4 Wales

Race Description

The Cardiff Half Marathon route is renowned for its flat, single-loop course that showcases many of the city’s highlights. Runners pass Cardiff Castle, the Principality Stadium, Cardiff Bay, Roath Park Lake, and the Civic Centre before returning to the city centre finish. The course is ideal for both personal bests and memorable sightseeing, with huge spectator support lining the streets.

What’s Included

• Finisher’s medal and optional event t-shirt

• Chip timing and live runner tracking

• On-course hydration stations and medical support

• Event village with entertainment, refreshments, and facilities

• Official pacers to help runners meet their goal times

Additional Information

• Entry Options
  Public entry available, plus thousands of charity places supporting a wide range of causes

• Age Requirement
  Minimum age 17 years on race day

• Cut-off Time
  4 hours — after this point, roads are reopened and remaining runners are supported on pavements

• SuperHalfs Series
  Cardiff is part of the SuperHalfs series alongside Lisbon, Prague, Berlin, Copenhagen, and Valencia

Sign Up Now
Take part in one of the UK’s most exciting running events. The Cardiff Half Marathon 2026, on Sunday, 4 October, promises a flat, fast course, iconic city landmarks, and an unforgettable atmosphere.