Cardiff Half Marathon 2026

One of the UK's largest and most popular road races returns to the Welsh capital, attracting thousands of runners and spectators for an unforgettable day of sport and community spirit.

📅 Date: Sunday 4 October 2026

📍 Location: Cardiff City Centre & Cardiff Bay

🏃 Distance: Half Marathon (13.1 Miles / 21.1km)

🎟 Entry: Registration required in advance

The Cardiff Half Marathon 2026 returns on Sunday 4 October and is expected to attract tens of thousands of runners to the streets of Cardiff. The event has grown into one of the largest half marathons in Europe and is widely regarded as one of the highlights of the Welsh sporting calendar. :contentReference[oaicite:0]{index=0}

Known for its flat and fast course, enthusiastic crowds and iconic city-centre landmarks, the race attracts elite athletes, charity fundraisers, first-time runners and experienced competitors from across the UK and around the world. :contentReference[oaicite:1]{index=1}

What To Expect

  • 13.1-mile half marathon route
  • Thousands of runners and spectators
  • City-centre atmosphere and entertainment
  • Charity fundraising opportunities
  • Live music and cheer points around the course
  • Iconic Cardiff landmarks along the route
  • Family and supporter viewing areas
  • One of Wales' largest participation events

The Route

The course takes runners through many of Cardiff's best-known locations, including areas around Cardiff Castle, the Principality Stadium, the Civic Centre and Cardiff Bay.

The event is renowned for being a relatively fast and accessible course while still offering plenty of atmosphere and spectator support throughout the city. :contentReference[oaicite:2]{index=2}

Spectators & Atmosphere

One of the reasons the Cardiff Half Marathon has become so popular is the incredible support from spectators lining the route. Music points, entertainment zones and cheering crowds help create a memorable experience for runners of all abilities.

Whether you're taking part or supporting friends and family, Cardiff offers a fantastic race-day atmosphere across the city.

Running for Charity

Many participants choose to run for charities, making the Cardiff Half Marathon one of Wales' biggest fundraising events each year. Numerous national and local charities offer places and fundraising opportunities.

Visitor Information

Cardiff is easily accessible by road, rail and public transport, making the event popular with runners travelling from across the UK. Hotels, restaurants, bars and attractions throughout the city help create a busy race weekend atmosphere.

Visitors should allow extra time for travel on race day due to road closures and large visitor numbers.

Important Notice: Event schedules, race information, road closures, registration details and spectator guidance may change. Always check with the official Cardiff Half Marathon organisers for the latest information before travelling or participating.

More Events Across Wales

Event Summary

The Cardiff Half Marathon 2026 promises another exciting day of running, fundraising and community spirit in the Welsh capital. Whether you're taking part, supporting a runner or simply enjoying the atmosphere, it remains one of the biggest sporting events in Wales. :contentReference[oaicite:3]{index=3}