Trail 10K runs in South Wales
Find trail 10k runs in South 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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- Sun 26 Apr
- £15-£27
The Nearly But Not Quite London Marathon | Wales | 10K
Didn't get a ballot entry into The London Marathon? Don't panic, come and experience this 10K event instead and earn a fantastic London-themed medal!
- 10 km trail running
- Sat 18 Jul
- £49
Gower Peninsula Ultra Challenge | 10K Loop
A perfect Saturday trail 10K from Penrice Castle on a loop towards Oxwich Bay then back to the event hub for a medal, a picnic lunch and to enjoy the whole Ultra Challenge atmosphere.
- 10 km multi terrain running + 250 m ascent
- Sun 20 Dec
- £26-£36
The Snow Globe Gallop Bobble Hat Run - Wales | 10K
Come and join in for the Christmas Carol Bobble Hat Run in the picturesque Dare Valley in Wales! At this event you can earn yourself a running buff as well as one of the incredible themed medals!!
- 10 km trail running
- Sat 11 Apr
- £29.95
RTT Gower Trail Half Marathon & 10K | 10K
- 10 km trail running
- Sat 9 May
- £30
Wild Hybrid Wales - Margam Country Park Solos | 10K Ruck Run
- 10 km trail running
- Sun 24 May
- £17.70-£19.70
Treforest 10K
- 10 km trail running + 200 ft ascent