Flat Half marathons in Wales
Find flat half marathons in Wales in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sat 30 May
- £14-£34
Rocky at 50 Run | Wales
Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run?
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 6 Jun
- £30-£35
Conquer Cardiff Summer | Half Marathon
It's time to conquer the Cardiff Summer Half Marathon, have a morning out with family, friends, or colleagues and enjoy the stunning Bute Park then receive your superb medal!
- 13.1 miles road running
- Sun 4 Oct
- £5-£60
Oysho Cardiff Half
An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage!
- 13.1 miles road running + 81 m ascent
- Sun 1 Nov
- £25-£35
Cardiff MoRun | Half Marathon
MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the half marathon, Cardiff!
- 13.1 miles road running