Half marathons in Wales
26 upcoming half marathons in Wales, United Kingdom.
17 cities
Busiest: November
From €29
Upcoming races
Your guide to half marathons in Wales, United Kingdom
There are 26 upcoming half marathons in Wales, United Kingdom, spread across 17 cities. Filter by distance or terrain to narrow things down, and save the races you like the look of.
Most take place in November, April and February. Next up is Cardiff MoRun - Half Marathon in Cardiff on 1 November 2026.
Questions runners ask
How many half marathons in Wales, United Kingdom are there?
Finndu lists 26 upcoming half marathons in Wales, United Kingdom, across 17 towns and cities. The list is updated twice a day as organisers announce new races.
When is the next one?
Cardiff MoRun in Cardiff, on 1 November 2026.
Which month has the most half marathons in Wales, United Kingdom?
November, followed by April and February.
How much does it cost to enter?
Entry starts from £25. Fees vary from race to race, so check each race page for its current price.