Road half marathons in South Wales, Wales
Find road half marathons in South Wales, Wales. Compare 2 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Cardiff MoRun and Great Welsh Marathon & Half Marathon.
2 listed events · 2 with upcoming dates
Upcoming half marathons
2 matching events, earliest date first. Entry availability is shown separately.
Cardiff MoRun
WALCardiff, South Wales
10K and 5K running event in Cardiff.
· Half marathon · Status TBC
Race details, entry and past editions →Great Welsh Marathon & Half Marathon
WALSouth Wales (venue TBC), South Wales
Great Welsh Marathon & Half Marathon in South Wales (venue TBC).
· Half marathon · Status TBC
Race details, entry and past editions →Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
No separate archived race guides are listed for this selection yet.
View full race archive (0) →Choosing a race in South Wales
The unfiltered upcoming calendar includes events in Cardiff (1), South Wales (venue TBC) (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about half marathons in South Wales
Which road half marathons are coming up in South Wales, Wales?
Cardiff MoRun is listed for 1 November 2026 (status to be confirmed). Great Welsh Marathon & Half Marathon is listed for 17 October 2027 (status to be confirmed). Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for South Wales, Wales?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.