United Kingdom · Road half marathon · 21.0975 km
Cardiff Half Marathon
Cardiff, Wales, United Kingdom
Cardiff’s half marathon puts the Welsh capital at the centre of a busy road-running weekend. Compare the route and entry pathways before making plans: ballot places, charity entries and international options each have their own arrangements. A familiar skyline does not make the final miles any shorter.
AthRecs race guide · Updated
Upcoming dates
TBC — awaiting confirmation
Waiting for the next race? Follow the organiser’s link for the latest date and race-day details. All dates and start times are local.
At a glance
- City / location
- Cardiff
- County / area
- Cardiff
- Nation
- Wales
- Distance
- 21.0975 kilometres / 13.1 miles
- Surface
- Road / surfaced paths
- Course profile
- Predominantly flat
- Approximate field
- Unknown
How to enter Cardiff Half Marathon
These are the organiser’s entry routes. Check the linked page for the edition, opening dates, eligibility, fees and current availability.
Ballot
Follow the official ballot information for the next edition; a ballot application is not a guaranteed place.
Official entry informationCharity and international entry
The organiser lists separate charity and international entry routes. Check their conditions and availability.
Official entry informationRoute and course
The organiser describes a flat, fast course around Cardiff. Consult the official route map for the current roads, landmarks and finish area.
Past races and results
Official results archiveOpen the organiser’s results to find a runner, club or published category standing. At festivals with several distances, select the half marathon results.
Use the official archive above to find earlier editions and category results.
Race news, photos and video
Visit the organiser for race updatesCommon questions
When is Cardiff Half Marathon?
The next race date is TBC (to be confirmed). Check the official organiser for the latest announcements.
How do I enter Cardiff Half Marathon?
Ballot: Follow the official ballot information for the next edition; a ballot application is not a guaranteed place. Charity and international entry: The organiser lists separate charity and international entry routes. Check their conditions and availability.
Where is Cardiff Half Marathon and how far is it?
Cardiff Half Marathon takes place in Cardiff, Wales, United Kingdom. This guide covers the 21.0975 km half marathon (13.1 miles). Surface: Road / surfaced paths
What is the Cardiff Half Marathon course like?
The organiser describes a flat, fast course around Cardiff. Consult the official route map for the current roads, landmarks and finish area. Predominantly flat
How big is the field at Cardiff Half Marathon?
The approximate field is Unknown. A reliable runner estimate is not currently available in this guide.
Where can I find past Cardiff Half Marathon results?
The past races and results section links to the organiser’s results. Select the distance and edition for participant searches and published category standings.
Sources and race information
AthRecs is independent of the race organiser. This guide brings together the linked race information, results and reports. Source review: . Historical details are labelled by edition; current entry availability and final instructions remain with the organiser.
More half marathons in United Kingdom
Compare the route and scale of another race. Options in the same region appear first when available.
- Bath Half Marathon
Bath, Somerset
City road course
Next date: 14 Mar 2027
Approximate field: Unknown
- Belfast City Half Marathon
Belfast, Antrim / Down
City road course
Next date: TBC
Approximate field: Unknown
- Great North Run
Newcastle upon Tyne to South Shields, Tyne and Wear
Point to point
Next date: 12 Sept 2027
Approximate field: About 63,000 (Organiser-reported participants, 2026)
- Great Scottish Run Half Marathon
Glasgow, Glasgow City
City road course
Next date: TBC
Approximate field: Unknown