A 10K race around Cardiff Bay


Set in the heart of Cardiff’s historic Bay, the Brecon Carreg Cardiff Bay Run is a flat, fast and friendly event for all ages and abilities.

Previously known as the Cardiff Bay 5 Mile, the race returned in 2017 with a stunning new 10km course around Cardiff Bay.

The route takes in all of Cardiff Bay’s most iconic landmarks, starting and finishing in Roald Dahl Plass and passing the Wales Millennium Centre, Mermaid Quay, the Pierhead Building, Senedd, Porth Teigr and the Cardiff Bay Barrage.

It’s a perfect challenge for elite and club athletes as well as those looking to keep fit, raise money for charity or take on their first 10K!

With no pressure to set record times or run all the way around, whether you take part in the fun run or 10k, join in and put a spring in your step.

The event forms part of the Run 4 Wales 10K Series and Healthspan 10 Initiative – which includes the ABP Newport Wales 10K and Brecon Carreg Barry Island 10K. Athletes who take part in two or more of the events are eligible for series prizes, and discounts are available when entering more than one race. 

The event will return for 2019, with a date announced soon!



Event Information

Location: Roald Dahl Plass, Cardiff Bay.

Time & Date: The 2019 event date will be announced soon.

Race Pack and Number: Your race number and a race day guide will be posted to you 2 weeks before the race.

Corporate Challenge: Click here to find out more about our Corporate Packages.

Elite Entry: Click here for more information on Elite Place qualifying times.

What’s Included: 10K race entry includes a finishers medal, technical race t-shirt and live results/participant tracking. Family Fun Run entry includes a commemorative medal.

Wheelchairs & Buggies: Entry is open to wheelchairs in both the 10k and Family Fun Run. Buggies are permitted in the Fun Run only.

Travel Advice & Road Closures: Click here for information on travelling and parking at the event.

Registration Fees:

The 2018 race completely sold out, with over 6,000 runners registering to take part.

  • General Entry: Sold Out
  • Affiliated Club Runner: Sold Out
  • 2K Family Fun Run Individual Sold Out
  • 2K Family Group Ticket (4) Sold Out

Pre-Register for 2019:

Register for updates, date announcement and priority access to 2019 registrations.

Pre-Register For 2019


*Please note a small admin fee is charged on top of our race entries by ACTIVE, who manage our online registration system. This fee is non-refundable.

Latest News

Run 4 Wales 10K Series Champions revealed

Matt Clowes and Eleanor Davies have been crowned king and queen of the inaugural Run 4 Wales 10K Series. The three race series, consisting of the Brecon Carreg Cardiff Bay Run, ABP Newport Wales 10K and Brecon Carreg Barry Island 10K, attracted more than 12,000 runners and some of Britain’s best elite endurance athletes. In […]

Read more


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Title Partner


Brecon Border

Brecon Carreg is proud to be the title partner of this year’s Cardiff Bay Run.

The partnership will be part of the brands 40th-anniversary celebrations throughout 2018.

From a small cottage in the beautiful Brecon Beacons National Park, the team bring you low in sodium mineral water, naturally filtered through rocks for a pure, clean taste.

Say hello to ‘Brecon Water’ on FacebookInstagram or Twitter.

Learn More: www.breconwater.co.uk



The Course

The Cardiff Bay Run had a brand new 10km route for 2017 (previously known as the Cardiff Bay 5 Mile).

Starting in the heart of Cardiff Bay, the route passes the iconic Wales Millennium Centre, Pierhead Building, Senedd and Porth Teigr before looping around the Cardiff Bay Barrage and Norwegian Church ahead of a grandstand finish in the Roald Dahl Plass.

Cardiff Bay

Get in touch

Contact us



The Cardiff Bay Run event is organised by Run 4 Wales, the organisers of the Cardiff Half Marathon.

Phone 029 2166 0790
Email enquiries@run4wales.org

Pod 1
Capital Retail Park
CF11 8EG

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